Explain the process of crossover during meiosis

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Answer 1

Answer:

Answer:

Homologous recombination is the process by which two chromosomes, paired up during prophase 1 of meiosis, exchange some distal portion of their DNA. Crossover occurs when two chromosomes, normally two homologous instances of the same chromosome, break and then reconnect but to the different end piece.

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A Venus flytrap produces new leaves from the step tip.Which life characteristic does this illustrate?

A.
growth

B.
reproduction

C.
homeostasis

D.
response to stimuli

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A Venus flytrap produces new leaves from the step tip. The life characteristic that this illustrates is A. Growth. Venus Flytraps are composed only of leaves, and rather than sharing a root system, each leaf grows its own root or roots, and each root is a single structure, not dividing or

What are two characteristics of an object that would cause it to produce a different echo than something else?

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the particular sound and the the size of the room the sound is being made in

A conservation geneticist job is to define what significant units?

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Answer:

A geneticist is a science who studies genes, including how they are inherited, mutated, activated, or inactivated. They often study the role that genes play in disease and health.

Explanation:

Geneticists must be able to conduct scientific experiments and analyses with accuracy and precision.

Communication skills. ...

Critical-thinking skills. ...

Interpersonal skills. ...

Math skills. ...

Perseverance. ...

Problem-solving skills. ...

Time-management skills.

A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR).What percentage of the offspring will be homozygous dominant (RR)? _______

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The percentage of plants that have the dominant RR is 50%.

According to Mendel, factors of inheritance called genes are located in the chromosomes. Genes usually occur in pairs called alleles. The genes in an allelic pair may be dominant or recessive. The dominant gene is always expressed while the recessive is only expressed in the absence of the dominant gene.

Using a Punnet square, we can see that the percentage of plants that have the dominant RR is 50%.

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So I don’t see answer choices here, but your answer is 50% of the offspring will be homozygous dominant with RR, and 100% of them will carry a homozygous dominant gene of Rr

If you take the two sets and put them into a punnett square, it would look like this (image attached):

When the two sets of alleles are crossed, you would end up with half of your pairs being fully dominant (RR), and the other half being dominant while containing a recessive gene (Rr). Since there’s only one recessive gene in these pairs, it gets overridden and the pair itself is dominant.

So your answer is 50% will be homozygous dominant with RR!

Without ribsomes a cell would not produce

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Ribosomes are organelles that create proteins. Cells use proteins to perform important functions such as repairing cellular damage and directing chemical processes. ... Without these ribosomes, cells would not be able to produce protein and would not be able to function properly.

Please Help Me I Give Thanks!!!!!

Answers

1. Once crops are harvested for human consumption, the natural supply of nutrients in the soil must be "re-filled". This is why farmer's add nutrients to their soils.
3. Most organisms, including humans, can't use the free gaseous form of nitrogen found in the air. We need other organisms and natural processes to "fix" nitrogen into a solid form that plants and animals can use. Most of the nitrogen that plants and animals use is made by bacteria.

I could only answer questions 1 and 3 for you but I hope I was able to help!

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