The complimentary base strands for TGA CAA CGA GGT ACT are start
ACT GTT GCT CCA TGA.
Complimentary base strands- Adenine and guanine, as well as thymine and cytosine, are the complimentary bases in DNA. A nitrogen-containing base, such as guanine, adenine, thymine, or cytosine, a monosaccharide sugar termed deoxyribose, and a phosphate group make up each nucleotide in DNA.
The complimentary bases may unite to form a bond. This aids in holding the DNA molecule's two antiparallel strands together just to form the helix. The complimentary base pairing rule refers to this.
According to Chargaff's criteria, DNA from all cells of all creatures should contain a 1:1 ratio of pyrimidine & purine bases. More specifically, the amounts of guanine and adenine should be equivalent to cytosine and thymine, respectively.
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Help asap…
1. In which organs is food moved through by peristalsis? (Choose all that apply)
A.stomach
B.small intestine
C.esophagus
D.liver
2. What is the substance produced by the liver that is necessary to break down fat drops into smaller fat drops?
A.bile
B.enzyme
C.acid
D.mucus
Answer:
1. A,B,C
2. A
Explanation:
1. Peristalsis is the automatic wave-like movement of the muscles that line your gastrointestinal tract. Peristalsis moves food through your digestive system, beginning in your throat when you swallow and continuing through your esophagus, stomach and intestines while you digest.
2. Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.
How many daughter cells are produced by the end of Mitosis?
A 1
B 2
C 3
D 4
Answer:
it produces two (2) daughter cells
PLEASE HELP!! WILL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER.
Cell division is regulated to prevent unnecessary replication and errors that can occur in the process. When regulation fails, mutations and cancer can result. The G1 checkpoint ensures that conditions are right for division. Evaluate each of these factors. All BUT ONE of them are examined at the G1 checkpoint.
A) nutrient availability
B) DNA is free of mutations
C) chromatids are attached to centromeres
D) evaluation of growth signals
Answer:
chromatids are attached to centromeres.
Explanation:
Answer:
C
Explanation:
chromatids is free of mutation
HELP PLEASEEEEE!!!!!!
The complete chart indicating the number of chromosomes after meiosis, in body cells, in gametes and after mitosis are indicated in the given image.
Meiosis is the process of cell division in which the number of chromosomes are reduced to half. This is the reason why it is also called the reductional division. The process occurs in two phases: Meiosis I and Meiosis II. Meiosis I is the phase where actual reduction takes place.
Mitosis is the process of cell division where the daughter cells are identical to the parent cell. Here, the number of chromosomes remain the same and hence is called equational division.
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Although animal nervous systems differ in complexity, their nerve cells are still remarkably similar
a. True
b. False
It is true that even though animal nervous systems vary in complexity, their nerve cells are remarkably similar.
Nerve systems exist in nearly all multicellular animals, though their complexity varies greatly. The only multicellular animals without a nervous system are a sponge and the placozoan and mesozoan organisms, both of which look like tiny blobs. With the exception of a few worm species and echinoderms, all other animals have a nervous system that includes a brain, a central cord (or two parallel cords), and nerves that radiate from the brain and central cord. The nervous system of ctenophores (comb jellies) and cnidarians (such as anemones, hydras, corals, and jellyfish) are made up of a diffuse nerve net.
The most fundamental functions of the nervous system are to direct an organism's movement and to influence its environment (such as through pheromones). To accomplish this, signals are sent from one cell to another or from one area of the body to another. The sources of the output that the nervous system produces are signals that travel to muscle cells and cause the activation of muscles, and signals that travel to endocrine cells that cause the release of hormones into the bloodstream or other internal fluids.
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Aside from cell membrane, where else can you find a bilayer of lipid?
Answer: Lipid Enveloped Viruses
Explanation:
Lipid enveloped viruses contain a lipid bilayer coat that protects their genome to help facilitate entry into the new host cell.
1. Correct the following paragraph describing pigments, energy and photons.
Photons are the particle that makes up light. Photons with a longer wavelength of light have more energy than photons with a shorter wavelength. Pigments can only absorb photons that have the exact amount of energy required to move
an electron to a higher energy state. If a photon's energy doesn't match exactly, the photon is absorbed. Most plants
have one kind of pigment in their leaves. If a pigment is red, it absorbs only photons with a red wavelength.
2. Correct the following describing the light dependent reactions of photosynthesis.
The first photosystem is photosystem II. In this photosystem, photons are absorbed by pigments in the antenna complex and the energy is used to create an electron at the reaction center. This excited electron is then given to ADP.
The electron carrier is then reduced which provides energy for the electron transport chain to pump H+ ions into the chloroplast stroma. Then, H+ flows through ATP synthase to power the reaction of ATP - ADP + P. The electron that
left the reaction center is replaced through condensation of a water molecule into oxygen and nitrogen. The second photosystem is photosystem I. In this photosystem, photons are absorbed by pigments in the antenna complex and the energy is used to re-excite the low-energy electron from photosystem II at the reaction center. This excited electron is then used to oxidize NADP+ into NADPH.
1. Light has two personalities. Light acts primarily as a wave, but it may also be thought of as a collection of tiny bundles of energy known as photons. If a pigment is red, it absorbs photons of different wavelengths while reflecting photons of the same wavelength.
2. Photosystems, which are huge complexes of proteins and pigments (light-absorbing molecules) that are tuned for light harvesting, play an important part in light reactions. Photosystems are classified into two types: photosystem I (PSI) and photosystem II (PSII).
How to illustrate the information?1 A photon is an electromagnetic energy packet. It is the fundamental unit of all light. The photon is also known as a "quantum" of electromagnetic energy. A photon's energy is proportional to its wavelength: longer wavelength photons have less energy, while shorter wavelength photons have more.
2 Light energy is used in light-dependent reactions to create two molecules required for the next step of photosynthesis: the energy store molecule ATP and the reduced electron transporter NADPH. Light reactions occur in the thylakoid membranes of chloroplast organelles in plants.
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Dimples are dominant; no dimples are recessive. Mr. Dowling is heterozygous for dimples, and Mrs. Dowling is also heterozygous for dimples. What are the possibilities of their offspring?
The possibilities of the offspring to have dimples is 75% (TT, Tt and Tt) and no dimples are 25% (tt) because both the parents are heterozygous dominant.
What are the three laws of mendelian genetics ?Mendelian inheritance is a type of biological inheritance that follows the principles that were initially proposed by Gregor Mendel in 1865 and 1866, re-discovered in 1900 by Hugo de Vries and Carl Correns, and popularized by William Bateson.
Mendel put out the hypothesis that, in order for reproduction to occur, the inherited components need to partition themselves into reproductive cells. It had come to his attention that permitting hybrid pea plants to self-pollinate would result in offspring that did not resemble their respective parents in appearance.
Law of Dominance is one of Mendel's three proposed laws of inheritance, which also includes Law of Inheritance. The law that enforced segregation. The Principle of Independent Assortment is a Law.
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A cell with an 02 concentration of 8 mM and a CO2 concentration of 5 mM is placed in a solution
of 10 mM 02 and 1 mM CO2. Describe the direction of diffusion of each gas.
As the concentration of O2 is higher in solution it moves from solution to the Cell, whereas CO2 moves from cell to solution.
Cell- As in the case of bacteria and protozoans, a single cell can be an entire organism in and of itself. In multicellular creatures like higher plants and animals, specialized cell groups are arranged into tissues and organs. Prokaryotic and eukaryotic cells are the two main subtypes of cells.
Solution- A continuous variation of a number of substances in their relative proportions up to what is known as the limit for solubility. Although mixtures of gases & solids are possible, the term "solution" is most frequently used to refer to the liquid condition of matter.
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ou are testing a patient's fecal sample for the presence of Clostridium difficile. Which of these staining procedures would give you the best evidence that the patient's sample contains bacteria from the Clostridium genus? Group of answer choicesendospore staingram stainsimple stainacid fast stain
As a protocol, the sample must first undergo primary biochemical tests, one of which is gram staining. And although this stain can help us to identify bacteria of the Clostridium genus, such as gram + sporulated bacilli, a more specific test would be the endospore stain, since the clostridium genus produces endospores that are also easy to isolate, since they are more resistant to temperature than the vegetative form (not sporulated) of the bacterium. An example would be the Schaeffer-Fulton stain.
Which of the following processes is not associated with sexual reproduction?OOOOmeiosisfertilizationbinary fissionrecombination
Of the following processes the one that is not associated with sexual reproduction is the binary fission, that is a asexual reproduction by a separation of an organism of the body into two new bodies.
The absence of special food and water conducting system restricts the body size in
The absence of special food and water conducting system restricts the body size in algae, liverworts and mosses.
Algae- The term "algae" refers to a class of mainly watery, photosynthetic, & nucleus-bearing organisms which lack the real roots, stems, and leaves of plants as well as their specialized multicellular reproductive structures.
Mosses- Mosses belong to the group of land plants called Bryophyta and are non-vascular plants. They are herbaceous (non-woody) tiny plants (some few centimeters tall) that primarily absorb nutrients and water via their leaves and use light and carbon dioxide to produce food through photosynthesis.
Liverworts- Small flowerless plants known as liverworts have thallus structures that resemble the lobes of a lobed liver. Insects and other small invertebrates depend on the 6000–8000 species of liverworts that are thought to exist.
The given question is incomplete, find below the complete question,
Q. The absence of special food and water-conducting systems restricts the body size in
A. algae, liverworts and mosses
B. liverworts, mosses and ferns
C. the bryophytes and the pteridophytes
D. the thallophytes and pteridophytes
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I need help with this practice problem solving The subject is the invasive speciesKudzu Review the pic, the answer^
Answer
Kudzu kills native plants by smothering them and blocking their sunlight. Climbing vines can girdle trees, and their weight can uproot trees. Loss of trees and plants to kudzu threatens agricultural and timber production. Kudzu would destroy the native species. Few plants can survive once smothered by kudzu and small ecosystems can be radically altered. Infestations quickly spread in open habitats, rapidly covering the soil and low growing vegetation, and only slowed by adjoining forests. Kudzu can affect indigenous plants and completely modify the structure of the ecosystem.
Kudzu is widely believed to drastically reduce biodiversity because of its ability to smother other vegetation and develop large-scale monocultures. It can climb overtop and subsequently kill new seedlings or mature trees. Forestry problems associated with aggressive vines such as kudzu include mortality of edge trees, exclusion of native plant species, and potential to increase fire hazard during winter.
Are fungi autotrophs or heterotrophs? Explain your answer using scientific reasoning and data
Answer:
Yeasts, molds, and are all different kinds of fungi. Fungi are heterotrophs, meaning they obtain food from outside themselves. Common fungi include yeasts, molds, and mushrooms.
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Name and describe at least two applications for population estimates.
What analogy is used to describe how cell replication is regulated?
Driving a car might be one common analogy used to describe how cell replication is regulated.
What is the cell replication cycle?The cell replication cycle is a sharply regulated process that resembles driving a car because there are many steps that can be stopped to continue with the process.
In the case of the cell cycle, there are major points of control that regulate the progression through this process which involve the Growth 1 phase (G1), the synthesis S phase and the Growth 2 (G2) phase. All these phases in the cell cycle are regulated by the presence of cyclin proteins that are phosphorylated by cyclin-dependent kinases in order to continue with the cell cycle.
Therefore, with this data, we can see that the cell cycle is a sharply regulated process that has several points of control where the cell recognizes that all is fine to continue with the process.
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9. [03.02]
Which of the following pair of elements could possibly be in the same group? (1 point)
X has a 1+ ion; Y has a 1-ion.
O X has an atomic number 15; Y forms a 3-ion.
OX tends to form a 2+ ion; Y tends to gain two electrons.
X will tend to gain one electron; Y has eight electrons in the outer orbit.
An element having an atomic number of eight and a mass number of 18 will contain eight protons.
The total number of protons and neutrons in the nucleus of an atom of a specific element is known as the atom's "atomic weight."
What is Atomic Number ?The charge number of an atomic nucleus is the chemical element's atomic number, also known as nuclear charge number. This is the number of protons present in the nucleus of each atom of that element, or the proton number, for conventional nuclei.
Ordinary chemical elements can be uniquely identified by their atomic number.
The atomic number is significant because it allows you to determine which element an atom belongs to. The fact that the contemporary periodic table is arranged according to increasing atomic number is another significant factor in why it matters. The atomic number is a crucial factor in defining an element's properties, to sum up.
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Student #1 is WRONG and Student #2 is CORRECT! You are student #2. Write a CER and explain how energy is passed through the ecosystem and why it is easier for grass to acquire energy than it is for a hawk.Try to use all the words in the word bank below to help you complete your open response CER. Review the RUBRIC WORD BANK: food web, the sun, food pyramid, producer, consumer, tertiary consumer, predator, autotroph, heterotroph, decomposer, predator, prey, herbivore, carnivore, omnivore.
The observation for the student #2 must starts by the claim, going to evidence, and finishing with the reasoning.
1 - Claim = To the grass (producer) is easier to acquire nergy than it is for a hawk (quartenary consumer), because the base of the food pyramid is where most of the energy of the food chain is maintained, and the producers are able to produce their own food from the natural resources in the environment;
2 - Evidence = The food web in the picture shows how the trophic levels are distribute in the ecosystem, being the food pyramid divided into: producers (autotroph organisms), consumers (primary-herbivores, secondary-omnivore, and tertiary-carnivore), predators, preys, and decomposers. The graph shows that from each levels a small quantity of energy is lost by the organisms, going from the levels with more energy (plants- that uses the sun to make photosynthesis) until the tertiary consumer (the pradator - hawk, that is a heterotroph). To have energy the plants need only to be in a good place, while the hawk have to go after preys and an environment that have a good balance between the trophic levels;
3 - Reasoning = The student #2 came to the conclusion that is much difficult for the hawk to obtain energy because of the observation of the challenges for each level tropic level being bigger and bigger. That's because the way that each organism get their food and what it eats is a determinant factor, as well the loss of energy to complete the most basic functions. Being the conclusion that the grass that just need sunlight and water have a lot less difficults and energy loss than a hawk that needs to hunt for food, survival, reprodutive needs and so on.
watts.
6. Solve a One-Step
Equation A hair dryer is
rated at 1,200 watts. If you
use the dryer for 0.25 hours,
how much electric energy do
you use?
The electrical energy consumed is 0.3 kWh. Electrical energy is energy related to forces on electrically charged particles and electrically charged particle movement.
What is electrical energy?Electrical energy is the ability of an atom's charged particles to perform an action or move an object. Electrical energy is produced by the movement of electrons from one atom to another. When you plug in a toaster or a cellphone charger into a wall outlet, electrical energy is used to power those devices. Electricity can be either kinetic or potential.Batteries, lightning, and electrical charges moving through a wire plugged into a wall socket to power electrical appliances such as televisions and computers are all examples of electrical energy. It now even powers many of our automobiles. It can be found in the clouds above you during a storm even if you travel to the most remote parts of the planet.Therefore,
The amount of electrical energy consumed can be calculated as follows:
E = Pt
where;
P is the power (kW)
t is time (h)
E = 1.2 kW x 0.25 h
E = 0.3 kWh
As a result, the total amount of electrical energy consumed is 0.3 kWh.
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ᴡʜᴀᴛ ɪs ᴘʜᴏᴛᴏsʏɴᴛʜᴇsɪs??? [tex] \\ [/tex]
Answer: The process by which green plants and some other organisms use sunlight to synthesize from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
what is the process that allows CO2 and glucose to enters the plants cells chloroplast
Answer: photosynthesis
Explanation:
photosynthesis
Plants use energy from sunlight to turn water and carbon dioxide into an energy-rich sugar called glucose. This process is called photosynthesis, which means “making things with light”. Photosynthesis takes place inside capsules in the leaf cells, called CHLOROPLASTS.
Pluripotent stem cells are of particular interest to stem cell research because they have the abilityto develop into any cell type in the body. This means they could be useful in treating diseases suchas cancer, Parkinson's disease, and multiple sclerosis.Why is the study of pluripotent stem cells controversial?O A. because they are created by cloningOB. because they are isolated from human embryosOC. because they can transform into cancerous tissueD. because they are created artificially in Petri dishes
Answer
B - because they are isolated from human embryos
Explanation
Stem cells are undifferentiated or partially differentiated cells that can differentiate into various types of cells and proliferate indefinitely to produce more of the same stem cell. They are the earliest type of cell in a cell lineage. They are found in both embryonic and adult organisms
Photosynthesis question: Suppose that a plant had chloroplasts that could carry out the Calvin cycle, but these chloroplasts could not carry out the light-dependent reactions. Explain why these chloroplasts could not carry out photosynthesis to produce sugars.
Light-dependent reactions produce ATP and NADPH that are used during light-independent reactions. Chloroplasts could not carry out photosynthesis to produce sugars because no ATP or NADPH would be available to carry out the Calvin cycle.
What is photosynthesis?Photosynthesis is the process through which plants take solar energy to produce organic compounds. Two alternating and closely related stages are involved in this process.
Light-dependent reactionsDuring this stage, chlorophyll molecules absorb luminous energy from the sun and turn it into chemical energy.
This event takes place in the thylakoidal membrane where the electron transporter chain is located.
The final result is the production of ATP and NADPH and oxygen release from water molecules.
Light-independent reactionsThis stage is known as the Calvin cycle and occurs in the chloroplast stroma.
CO₂ enters the leaves and fixates, producing organic compounds like carbohydrates.
The whole cycle is possible because it uses ATP and NADPH produced during light-dependent reactions.
According to this information, chloroplasts could not carry out photosynthesis to produce sugars because, in the absence of light-dependent reactions, solar energy could not be absorbed, and chemical energy needed for the Calvin cycle would not be produced.
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What’s the correct answer answer asap for brainlist
Answer:
the answer is option a
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What is the defining characteristics of monotreme mammals?A. They carry highly immature young in a pouchB. They develop a placenta during pregnancyC. They lay eggsD. They lactate (produce milk)
The best option would be C. They lay eggs
Which classification includes more genera? A class or family?
Answer: The answer would be CLASS.
Explanation: If we refer to the taxonomic level of classification,
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
we can see that CLASS ranks higher compared to Family. So, the Class has a wide range of genera that will belong to it than Family.
Which of the following is anenvironmental factor thatcould cause a mutation?A. psychological agentsB. irrelevant mutagensC. internal agentsD. biological mutagens
The correct answer is D. biological agents. Mistakes when DNA is replicated is a common biological source of mutations.
How does budding produce more yeast?
Budding produces reproductive cells called spores.
Budding splits the DNA of yeasts in two separate cells.
Budding produces egg and sperm cells to create yeast cells.
Budding causes the cells of the yeast to split into two separate yeast cells
Budding produces more yeast by: (2) Budding splits the DNA of yeasts in two separate cells.
Budding is among the forms of asexual reproduction where only one parent is required to give rise to daughter cells and no formation of gametes occurs. In budding, a small projection comes out from the parent body which eventually grows into an adult and separates from the parent body.
Yeasts are the eukaryotic unicellular species. They belong to the kingdom fungi. There are several species of yeasts in existence. The major use of yeasts can be seen in baking and making of alcoholic beverages.
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In the figure, Side A is pure water and Side B is a 10% starch solution.
There is a semi-permeable membrane between the sides. Is this osmosis or simple diffusion? Why does the level in side B rise?
Water may pass readily across a semipermeable membrane, but solute cannot. Water travels to the solution side as the membrane divides pure water on the right from solution on the left. Osmosis is the cause of this water flow.
Why did water cross the permeable membrane from one side to the other?Osmosis is the net movement of water across a membrane that is permeable only to certain substances, and it is caused by the concentrations of different solutes on each side of the membrane.
Osmosis is the mechanism through which water diffuses across cell membranes. Osmosis is the process by which water moves from one region of low solute (dissolved material) concentration to another region of high solute concentration through a semipermeable membrane.
Osmosis is the process through which water diffuses across a semipermeable membrane based on the gradient of water concentration across the membrane. Osmosis simply moves water over a membrane, whereas diffusion moves materials both inside cells and across membranes.
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Why does the body need iron ? a. Stimulates formation of of lymph b. Forms part of hemoglobin c. Prevents destruction of red blood cells d. prevent the plaque formation in arteries
The body need iron because it is a major component of hemoglobin, an important cell for the organisms that carries oxygen from the lungs to all the parts of the body, without iron the number of hemoglobin is not enough to transport oxygen and the organism can be lead to fatigue. Therefore, the correct alternative is B. forms part of hemoglobin.
