Answer:
"building block of life"
Explanation:
One complete cell carries out all the functions necessary to sustain life at the microscopic level. The nucleus gives out instructions for how the cell would operate, where the chloroplast is responsible for carrying out the process of photosynthesis in plants to make food.
Each cell needs a full instruction manual to operate properly. DNA needs to be copied before cell division so that each new cell receives a full set of instructions.However, DNA cannot begin the process by itself. Describe how the uptake of glucose can make this process take place.
Answer:
sorry but i need these points for a assignment
create an example of a monohybrid cross and a dihybrid cross using Punnett squares.
Answer: Thxs down below
Explanation:
The offspring resulting from a monohybrid cross will be heterozygous for the gene in question, meaning they have inherited one allele from each parent. The Punnett square is a useful tool for predicting the outcome of monohybrid crosses.
What is a monohybrid cross?A monohybrid cross is a genetic cross between two individuals that involves one gene. In other words, it is a cross between two parents that differ in only one trait, such as flower color or seed shape. Monohybrid cross example:
Let's say we're studying the inheritance of flower color in pea plants, where purple flowers (P) are dominant over white flowers (p). If we cross a heterozygous purple-flowered plant (Pp) with another heterozygous purple-flowered plant (Pp), the Punnett square would look like this:
P p
P PP Pp
p Pp pp
So, the genotypic ratio would be 1:2:1 (1 PP, 2 Pp, 1 pp) and the phenotypic ratio would be 3:1 (3 purple flowers, 1 white flower).
Dihybrid cross example:
Let's say we're studying the inheritance of two traits in pea plants - flower color and seed shape. Flower color is determined by two alleles: purple (P) is dominant over white (p), and seed shape is determined by two alleles: round (R) is dominant over wrinkled (r).
If we cross a heterozygous purple and round flowered plant (PpRr) with another heterozygous purple and round flowered plant (PpRr), the Punnett square would look like this:
PR Pr pR pr
PR PPRR PPRr PpRR PpRr
Pr PPRr PPrr PpRr Pprr
pR PpRR PpRr ppRR ppRr
pr PpRr Pprr ppRr ppr
So, the genotypic ratio would be 1:2:1:2:4:2:1:2:1 (1 PPRR, 2 PPRr, 1 PpRR, 2 PpRr, 4 PPrr, 2 Pprr, 1 ppRR, 2 ppRr, 1 ppr) and the phenotypic ratio would be 9:3:3:1 (9 round purple flowers, 3 round white flowers, 3 wrinkled purple flowers, 1 wrinkled white flower).
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ANSWER ASAP PleAse
1. Describe how DNA analysis can be used to investigate evolutionary relationships among different bird species. Explain the role that pseudogenes in birds play in determining evolutionary relationships.
hope this helps you for the first question :)
DNA analysis can be efficient to investigate evolutionary relationships between birds due to nucleotide sequences. In this context, pseudogenes are very important, as they are nucleotide sequences aimed at the evolutionary process and not at the expression of characteristics.
Why is DNA analysis important?DNA analysis allows the study of the nucleotide sequence, which allows the comparison between the DNA composition of two individuals.As the genetic code is universal, specific proteins that show the similarities between these sequences can be used.These similarities reveal the genetic and evolutionary relatedness of each species.The more similarities in nucleotide sequences are identified between two birds, the more evolutionarily similar those birds are.
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true or false: there is genetic variation among the plantlets
Answer: False
Explanation:
The statement "there is genetic variation among the plan" is false.
What is genetic variation?Genetic variation is the variance in DNA sequences among members of a population. Germ cells, such as sperm and eggs, as well as somatic (all other) cells, are subject to variation. Examples of genetic variants that can exist in a human population include skin color, hair color, dimples, freckles, and blood type.
The altered leaves of carnivorous plants and the evolution of flowers that resemble insects to entice pollinators are two examples of genetic variation in plants.
The only probable outcome of the founder effect on the genetic variation among the options provided in the question is a "Decrease in genetic variation."
Therefore, the statement is false.
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How does carbon dioxide affect the Earth's climate?
Carbon dioxide is being added to the soil, which causes weather phenomenon.
While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's
heat.
Carbon dioxide mixes with water vapor to take harmful chemicals out of the air.
Carbon dioxide affects the Earth's climate while carbon dioxide is in the air waiting to be reabsorbed; it traps the sun's heat. The correct option is b.
What is carbon dioxide?Carbon dioxide whose chemical formula is CO2 is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature.
In the air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. It is a trace gas in Earth's atmosphere at 421 parts per million, or about 0.04% by volume as of May 2022, having risen from pre-industrial levels of 280 ppm. Burning fossil fuels is the primary cause of these increased CO2 concentrations and also the primary cause of climate change. Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, and seawater.
When carbon dioxide dissolves in water, it forms carbonic acid, which causes ocean acidification as atmospheric CO2 levels increase.
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Help please! Will give brainliest if correct.
Answer:
b
Explanation:
A major source of variation is mutations.
True
False
I need a theme for creating a cell analogy. Any ideas?
Answer:
Yes
Cars need power to drive, and this happens when fuel, converts to energy in the engine, much like mitochondria creating ATP.
When completing a soil texture test silt particles feel? Sticky, gritty, or smooth?
Answer:
Soil texture is determined by the size and proportion of the particles that make up the soil. Every soil can be separated into three fractions – sand, silt, and clay. Sand particles are the largest and make the soil feel gritty. Silt particles are medium sized and give a smooth, floury feeling to the soil.
Uh, I hope it helps you understand? :T
Some characteristics of gray wolves are listed below. Which characteristic shows that gray wolves adapted to cold environments?
gold-colored eyes
living in packs
thick fur
slightly webbed feet
Which phrases describe the open-ocean zone? Check all that apply.
Answer:
Assuming theses answers are there....
Explanation:
A. very little sunlight
B. few nutrients
C. low temperatures
Explain how endospores have allowed some bacteria, like tetanus, to be a successful species.
Answer:
Endospores allow Clostridium tetani (causative agent of tetanus) to survive harsh conditions in the environment. Because tetanus is an obligate anaerobe, oxygen is a harmful environmental factor. Endospores also allow the bacteria to resist desiccation (drying) and high temperatures.
The bacteria can be dormant as endospores until they are in favorable conditions. At this point, they will germinate into vegetative cells where they will be able to reproduce until conditions become unfavorable and they form endospores again.
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Answer: spore open and bacteria goes in your pore making them zits
Explanation:
The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:
The understanding of evolutionary processes has help scientists in the field of artificial selection. The best example of artificial selection is
What does the Big Bang Theory explain? -How the universe was created.
-The brightness of stars.
-How many stars there are in the Milky Way.
-The way that black holes are formed.
Resonance is when a sound wave causes an object to:
O A. move forward at the speed of sound.
B. vibrate at its natural frequency.
C. bend as it travels from one medium into another.
O D. reflect the sound wave back toward the source.
SUBMIT
Answer:
B
Explanation:
vibrate at its natural frequency
Which molecule is essential for bacteria to decompose matter?
O Nitrogen
Phosphorus
Carbon dioxide
Oxygen
Answer:
carbon dioxide is the correct answer to this question
Calculate the increase
in the mouse population
between months 23 and 25.
Show your work.
The mouse population has increased exponentially from 23 months to 25 months. There is an increase from 0.9 to 3.4. Hence, a nearly 2.5 million rise is seen.
What is population growth?
A population is a group of similar individuals present in a particular environment. The tiger population, for example. A population growth depends upon the carrying capacity of the environment. Carrying capacity is defined as the potential of an environment to hold a population. It varies for different populations.
If the carrying capacity is lower for a population, they have a lower chance of survival in that environment. In that environment, they get less food and less space to live. They can't grow exponentially.
When a population's carrying capacity is high, it receives more food and more living space. They grow exponentially in that environment. In the mouse population, between these two months, they grow exponentially due to the proper availability of resources.
Hence, 2.5 million growth is seen in mice between these two months.
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a biology student stated that "plants only require photosynthesis for growth". explain why this statement is incorrect.
Answer:
This is what plants need for photosynthesis
Water
Water enters the plant through absorption by the roots. During the process of photosynthesis, the water molecule is broken into hydrogen and oxygen. The hydrogen atoms are used to form a carrier molecule called NADPH that, later in the photosynthesis process, is broken down to form glucose, a sugar that organisms commonly use for energy. The oxygen from the water is released into the atmosphere, where it becomes available to animals to use for respiration. The role of water in the photosynthesis process illustrates why plants are essential to life on Earth. Not only do they release oxygen to breathe, but the glucose that water helps to produce nourishes animals that will feed on the plant.
Photosynthesis is the process by which plants convert light from the sun into chemical energy that aids in their own growth and provides nutrients to other organisms that consume them. The role of water in the photosynthesis process illustrates why plants are essential to life on Earth.
Carbon Dioxide
Carbon dioxide enters the plant through structures in the leaves called stomata. Stomata act as gates for gases to pass in and out of the leaves. The oxygen released from water also passes through the stomata. Because plants can also lose water through their stomata, they have the ability to shut or open them, depending on whether the plant needs to exchange gases. During the photosynthesis reaction, the addition of hydrogen to the carbon dioxide molecule produces carbohydrates that can be used by the plant as energy.
Light
Visible light is composed of a spectrum of colors ranging from red to violet. Colors vary according to the size of the light's wavelength. When a pigment absorbs light, several responses may occur, one of which is the start of a chemical reaction. When plants absorb light, the energy from the light triggers the chemical reaction of photosynthesis. Carbon dioxide enters the plant through structures in the leaves called stomata. Because plants can also lose water through their stomata, they have the ability to shut or open them, depending on whether the plant needs to exchange gases.
Chlorophyll
Chlorophyll is a pigment, or a substance that absorbs certain wavelengths of light. Chlorophyll gives plants their green coloration because it absorbs every wavelength of visible light except green. Because it reflects green light, plants appear green. All other wavelengths of light, when they strike the chlorophyll molecule, energize the molecule and start a chemical reaction. In plants, chlorophyll is contained in structures called chloroplasts that contribute additional proteins that interact with chlorophyll and help set off the photosynthesis reaction.
Enzymes
Enzymes function as catalysts in chemical reactions, meaning that they speed up chemical reactions. The process of converting light energy into oxygen and sugar is long and complex, and each chemical reaction in the process relies on a different enzyme to speed up the reaction and make photosynthesis efficient.
Answer:
This statement is wrong because if you consider phtosynthesis alone you are not considering the extra elements needed like air ( the carbon dioxide in it),water or the nutrients from the soil ,they also need space so they can spread their roots and grow , and lastly they need a propper tempreture so they can grow properly.
Explanation:
DNA CCT CTT TAC ACA CGG AGG GTA CGC TAT TCT ATG ATT ACA CGG TTG CGA TCC ATA ATC mRNA protein
Answer:
mRNA: UGG AGA AAU GUG UGC CUC CCA UGC GAU AAG AUA CUA AUG UGC CAA CGC UAG_ GUA UUA G
Protien: TRP ARG ASN VAL CYS LEU PRO CYS ASP LYS ILE LEU MET CYS GLN ARG STOP VAL LEU G
Explanation:
what are the three major components of the cytoskeleton?
Answer:
The Cytoplasm is made up of three parts: cytosol, organelles, and inclusions.
A homeless man in panama city was arrested and charged with theft he could not afford an attorney and had to go trail without one bbb
Answer:
um i don't get the question but he's not allowed to go to trial without an attorney. they should be given an attorney if they can't afford one
Explanation:
if an organism has a haploid number of 10, how many chromosomes are in their body cells
Answer:
Chromosome number
These 46 chromosomes are organized into 23 pairs: 22 pairs of autosomes and 1 pair of sex chromosomes. The sex cells of a human are haploid (n), containing only one homologous chromosome from each pair. Hope this helped! :))
Explanation:
If an organism has a haploid number of 10, then the organism's body cell has a total of 20 numbers of chromosomes, as a haploid cell contains half the chromosome of a normal diploid cell.
What is the significance of the chromosome in organisms?Chromosomes determine the genetic information and the inherited traits, and these chromosomes are made up of DNA and carry the genetic information for an organism, including information about physical traits. Chromosomes can result in genetic disorders such as deletion or duplication, which can result in life-threatening conditions and give information about metabolism and growth.
Hence, if an organism has a haploid number of 10, then the organism's body cell has a total of 20 numbers of chromosomes, as a haploid cell contains half the chromosome of a normal diploid cell.
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What structures might be found on the underside of fern leaves?
spores
seeds
pollen
Answer:
Spores
Explanation:
Answer:
spores
Explanation:
which helps in exchange of gases
Read each of the sentences that describe what happens either during mitosis or meiosis. Drag each sentence into the correct box.
Complete question:
In the attached files you will find the sentences used to complete this problem, and their corresponding boxes.
Answer:
Mitosis:
Homologous chromosomes do not pairOne row of chromosomes line up in the center of the cellThe cell nucleus divide only onceTwo diploid daughter cells form that are identical to their parental cellsMeiosis:
Each replicated chromosome pair with its corresponding homologous pairTetrads form, and crossing-over sometimes occurPaired homologous chromosomes line up across the center of the cellFour haploid daughter cells form that are not identical to their parental cellsExplanation:
There are two principal types of cells in the organism: Somatic diploid cells (2n) that reproduce by the process of mitosis, and germ cells that are diploid reproductive cells in charge of gamete production. These germ cells suffer both mitosis (to form more sexual cells) and meiosis (giving place to haploid gametes, called sperm and egg cells, through the gametogenesis process). Both somatic cells and germinal cells will end their cycle becoming two daughter cells with the same genetic dotation.
Gametes´destiny is to merge in the process of fecundation, during which a new diploid cell called zygote emerges through fertilization. The zygote is a complete cell from the structural point of view that suffer successive mitosis to form the new organism.
Meiosis is a process by which, from a diploid germ cell (2n), four daughter cells with a haploid chromosome number (n) are produced. Each daughter cell has half of the chromosomes of the original one. There are two phases in meiosis: the first one in which occurs a chromosome´s reduction division, and the second one where the cell suffers a new division, but this one is not a reductive one. In the first phase, Meiosis I: Chromosomes condensate and became visible. Occurs crossing-over between homologous chromosomes in the equatorial plane. Crossin-over makes the daughter cells to be genetically different from the original one. After crossing-over, homologous chromosomes get separated again. Then occurs cytokinesis and chromosomes became lax again. In the second phase, Meiosis II: Chromosomes condensate again, they join the spindle apparatus and migrate to the equatorial plane. Centromeres divide and each chromatid goes forward to each pole. Once in the poles the chromosomes became lax again and occur cytokinesis. Mitosis is a process by which, from a diploid somatic cell (2n), two daughter diploid cells (2n) are produced. During mitosis, the cell duplicates and then separates. Mitosis occurs in only one phase. In the prophase, it occurs chromosomes condensation and nuclear membrane breaks. During the metaphase, fibers of the spindle apparatus capture chromosomes and take them toward the center of the cell, to the equatorial plane, where they line up. Each chromatid joins with a microtubule of opposites poles. Sister chromatids are held together until they reach the Anaphase, during which other enzymes are activated to break the bonds and separate the chromatids, which migrate to the opposite poles. In telophase, the duplicated chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole. Finally, occurs cytokinesis.
Answer:
Here:
Explanation:
How does the process of photosynthesis affect the atmosphere?
A. Photosynthesis removes oxygen from the atmosphere and replaces it with CO₂.
B. Photosynthesis changing water vapor and nitrous oxide into atmospheric oxygen.
C. Photosynthesis is the main source of oxygen in the atmosphere.
D. Photosynthesis adds small amounts of oxygen to the atmosphere.
Answer:
C
Explanation:
The result of Photosynthesis is Oxygen which goes into the atmosphere that were breath in. All the others are wrong.
Photosynthesis helps the atmosphere to gain up the oxygen level in the atmosphere. Photosynthesis is the main source of oxygen in the atmosphere. Option C is correct.
What is photosynthesis ?Photosynthesis is the process that takes place in the presence of sunlight where the food is prepared by leaves by the help of chlorophyll.
Photosynthesis releases oxygen and uses carbon dioxide in order to prepare their food. The process take place in the leaves which are also called as the food factory of the leaves.
Photosynthesis deals with the multiple chain reactions that takes place in the cells where electrons are released and accepted where ATP and NADPH are present as the energy currencies.
Humans and plants have a relationship of exchange between them where the oxygen released by the plants in the process of photosynthesis is taken up by the humans as the humans rely on the oxygen for the breathing purposes.
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PLEASE HELP DUE IN 10 MINUTES!!!!
There are three main types of RNA: messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA).
Which type or types of RNA contain a copy of the instructions that a gene carries?
A. mRNA only
B. rRNA only
C. mRNA and tRNA
D. mRNA, rRNA, and tRNA
Answer:
A. mRNA only
Explanation:
The type of RNA that contains a copy of the instructions that a gene carries is mRNA.
RNA stands for ribonucliec acid. It is genetic material in some organisms like viruses. It is of three types, namely mRNA, rRNA and tRNA. mRNA contain a copy of the instructions that a gene carries.
What is translation?Translation is the process of formation of protein by mRNA.
In this process the gene encodes a protein, and instructions are given for making protein.
mRNA plays main role in protein synthesis, as it contain a copy of the instructions that a gene carries.
Thus, the correct option is A.
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Duplication in the gene encoding a protein invalided in vision has enabled human to acquire trichromatic vision which type of mutation is this
Answer:
beneficial mutation
Explanation:
A mutation is any alteration in the genetic material of an organism. In general, mutations have a negative impact on the fitness (or reproductive success) of the individual that carries this mutation; however, there are situations where a mutation may be beneficial for the individual in a given environment. When a beneficial mutation occurs in the germline, it potentially can be passed to the next generation and progressively increases its frequency in the population.
During parallel flow there was a concentration gradient for albumin in all regions of the filter. The same was true for counter current flow. Why did albumin not diffuse into the dialysate?
Answer:
Due to large size.
Explanation:
albumin did not diffuse into the dialysate because the size of albumin is too large for the dialysate. The purpose of dialysate is to remove toxins from the blood by the process of diffusion. The membrane through which the toxins passes are small in size so only small molecules are able to diffuse through it and no albumin diffuse through it due to large size.
PLEASE ANSWER FAST
What happens when the crests of two waves overlap to form a larger wave? IS
diffraction interference
destructive interference
constructive interference
Answer:
Constructive interference
Explanation:
What is the student doing
Answer:
Explanation:
making a prediction
