Which phase preps the cell for mitosis

Answers

Answer 1

Answer: prophase preps the cell for mitosis

Related Questions

How much oxygen is contained in the atmosphere?a. 20% b. 21% c. 22% d. 23% What is slowed when water is a limiting factor in an environment? a. amount of evaporation b. population growth c. the types of rocks
Why is it necessary to use the same restriction enzyme to cut 2 pieces of DNA that are to be joined together?
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Which tissue is responsible for voluntary and involuntary movements?a. Connective tissueb. Muscle tissuec. Epithelial tissued. Nervous tissue

Because of its size, messenger RNA (mRNA) is able to exit the nucleus through nuclear pores andenter the cytoplasm where ribosomes are located true or false.

Answers

Answer:

true

Explanation:

You are a virologist interested in studying the evolution of viral genomes. You are studying two newly isolated viral strains and have sequenced their genomes. You find that the genome of strain 1 contains 25% A, 55% G, 20% C, and 10% T. You report that you have isolated a virus with a single-stranded DNA genome. Based on what evidence can you make this conclusion

Answers

Answer:

See the answer below

Explanation:

In double-stranded DNA, the ratio of purine bases (Adenine and Guanine) and that of pyrimidine bases (Thymine and Cytosine) is 1:1 according to Chargaff's rule. This means that the percentage of Adenine must be equal to that of Guanine while that of Thymine must also be equal to Cytosine.

However, in the case of the newly isolated viral strain, the amount of Adenine (25%) and Guanine (55%) vary while that of Thymine (10%) and Cytosine (20%) also vary. This is in contrast to Chargaff's rule. Hence, the isolated virus is a single-stranded DNA virus instead of a double-stranded.

Why is diffusion important for cells? Why is diffusion important for cells?

Answers

Diffusion is essential for cells to bring nutrients and releasing wastes WITHOUT spending energy. This is accomplished by the "urge" of a system to achieve equilibrium, which means that materials tend to flow from high concentration to low concentration area. For example, if a cell lacks amino acids, and therefore has a low concentration of it inside the cell compared to the outside, then by diffusion, the amino acids outside will flow in through the membrane until the concentrations of amino acids outside and inside the cell are the same. All these are done without spending energy from the cell. Note, however, that simple diffusion cannot transport larger particles or those insoluble in lipids; these materials have to be transported with facilitated diffusion, where a carrier on the membrane of the cell will help bring in the materials.
Diffusion is when particles in a more concentrated area move to a less concentrated area, through a semi- permeable membrane. Without diffusion, the cells in your body will not be able to obtain the resources they need to survive, like water and proteins.

Which type of selection leads to increased phenotypic and genetic variation?A. directional selection
B. disruptive selection
C. stabilizing selection
D. species selection

Jezelyn needs to create a project that shows reproductive isolation in action and decides to make a video. Which of the following would make the best project?
A. a video that shows a large river that has penguin populations on both sides
B. a video that shows penguin species that have different mating dances
C. a video that shows a penguin that is laying eggs
D. a video that shows penguins in a tidal pool and an open ocean

Answers

The answer to the first question is letter B. This is because disruptive selection is opposite to stabilizing selection which decreases genetic variation or genetic diversity. Among the choices on the second question, the second option (B) is the most plausible because it could mean "difference within the same specie". This video would likely to show sexual isolation.

Both of the question is B. Hope it help!

Predict the offspring of two white homozygous cats. Black is dominant to white. Use B for dominant and b for recessive. what are the genotypes and phenotypes of the new generation? what are the percentages of round and wrinkled plants?

Answers

Answer:

Genotype of offspring: bb

Phenotype of offspring: white

Percentage of white offspring: 100%

Percentage of black offspring: 0%

Explanation:

Black with allele B is dominant to white with allele b.

Homozygous white will have the genotype bb.

Crossing two homozygous white cats:

bb x bb = bb, bb, bb, and bb

All the offspring will be homozygous white with bb genotype.

Percentage of the offspring that are white = 100%

Percentage of the offspring that are black = 0%

Answer:

The offspring will also be white and homozygous.

Explanation:

If the two cats are white and homozygous where the gene B is for black color and dominant, gene b is for white color and recessive. In this case the genotypes of the two cats are going to be "bb" which can only lead to the same genotypes and phenotypes in their offspring. They will also be white and homozygous.

I hope this answer helps.

What are the primary factors that determine whether a volcano erupts explosively or relitivly quietly.

Answers

The intensity of the volcano eruption depends on the character and composition of the magma.

Further Explanation:

Magma is formed when the lower crust or upper mantle of the earth is melted. This magma is discharge by a volcano, which is referred to as a vent or opening through which magma is released. Many factors can trigger a volcanic eruption. The major reasons are:

The density of the magma
Pressure from the gases present in the magma
Addition of a newly formed magma into an already filled magma chamber

The intensity of volcanic eruption could be of two types, explosive and quite. There are two primary factors which determine whether the volcanic eruption is quite or explosive named are:

Viscosity
Content of gases in magma

As the viscosity and gas content of magma is low, then volcanic eruption is less explosive or quite. On the other hand, if the viscosity and gas content is high, then the volcanic eruption is explosive.

Learn more:

Learn more about the abiotic factor brainly.com/question/1561256
Learn more about the cellular respiration brainly.com/question/8900186
Learn more about the primary and secondary succession brainly.com/question/4723069

Answer Details:

Grade: High School

Subject: Biology

Topic: Volcanic eruption

Keywords:

Explosive, gas content, volcanic eruption, high, viscosity, quite, magma, intensity, factor, density, pressure, addition, formed, filled.

chemical composition,temperature, viscosity
different chemicals in an erupting volcano's magma affects the temperature, which in turn affects the viscosity, which affects the eruption itself
for example, less silica content in the magma means lower temperature which means the lava cools down faster and hardens faster, which means the viscosity increases, which in turn results in relatively quiet explosion.

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