What phase of the cell cycle does DNA replicate?A. Prophase
B. Anaphase
C. Metaphase
D. Interphase
Answer:
Option - DHope it helps youIron is attracted to a magnet while tin is not. If a mixture of iron and tin pieces is placed near a magnet,
Answer:
The iron will separate from the tin.
Explanation:
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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What is the population density of a city with a population of 268,931 in 6,995 square miles?
652,190
Explanation:
All you gotta do is add
calculate the heat energy lost by the zooplankton
Answer:
2273 Is the amount of heat energy lost by zooplankton
Explanation:
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
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:
true or false the mitochondriion organelle is considered the " mighty power house " because it makes ATP .
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
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
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
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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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
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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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.
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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:
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.
Help please! Will give brainliest if correct.
Answer:
b
Explanation:
What is the student doing
Answer:
Explanation:
making a prediction
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.
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:
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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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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:
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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Which of the following explains why food is cheaper and more available now than at any time in history?
More people in developing countries are eating more grains than meat.
Farmers can produce more crops from the same amount of land.
More farmers are purchasing neighboring lands to add to their holdings.
Scientists have developed “super seeds” that are rich in energy.
Answer:
because taxes and prices in the stockmarket are going up so they have enough money so they lower the prices
Explanation:
Answer:
B: Farmers can produce more crops from the same amount of land.
Explanation:
American farms grew larger and more productive at the same time that the global demand for their crops, and the food made from those crops, accelerated. The United States exported 6,988,000 metric tons of corn in 1960. In 2007, the United States exported almost nine times that amount: 61,913,000 metric tons of corn. Corn exports have declined since 2007 because the growth of the ethanol industry has kept more of the corn crop at home. To meet the growing global demand for corn on basically the same amount of land, American farmers improved the productivity of their crops: corn yields, as measured in tons per hectare, more than doubled from 1960 to today.
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The understanding of evolutionary processes has help scientists in the field of artificial selection. The best example of artificial selection is
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.
A major source of variation is mutations.
True
False
Does it matter whether DNA sequence the mutation occurs
What are two resources for which organism would compete?
Answer:
Air, food, water and space
Answer:
Organisms compete for the resources they need to survive- air, water, food, and space. In areas where these are sufficient, organisms live in comfortable co-existence, and in areas where resources are abundant, the ecosystem boasts high species richness...
