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3 years ago

When a germ cell undergoes meiosis, which event would MOST likely result in four aneuploid daughter

Biology

1 answer:

sveta [45]3 years ago

6 0

Answer:

B. misalignment of the chromosomes during anaphase I

Explanation:

Aneuploidy refers to an error in the chromosomal number of a cell. This occurs when the chromosomes fail to separate equally into individual cells, a process called MEIOTIC NONDISJUNCTION. Meiotic disjunction can occur in either the anaphase stage of meiosis I or meiosis II, however, different outcomes are produced.

When chromosomes fail to separate at meiosis I, it results in two gametes that lack that particular chromosome (n-1) and two gametes with two copies of the chromosome (n+1). This means that the four daughter cells will have an incorrect number of chromosomes, hence, the misalignment of the chromosomes during anaphase I will result in four aneuploid daughter cells.

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Sarah is doing an experiment on pea plants. She is studying the color of the pea plants. Sarah has noticed that many pea plants

kati45 [8]

Purple flowers is the correct answer because If there was a cross between both it would most likely be purple

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3 years ago

Read 2 more answers

What is the purpose of the pericardial sac that surrounds the heart in mammals

Nitella [24]

Answer:

Pericardial sac has protective tole

Explanation:

Pericardial sac or pericardium is a fibrous tissue that surrounds the heart. It has two coats:

the outter coat-parietal pericardium
the inner coat-visceral pericardium or epicardium which is double-layered and contains pericardial fluid between those two layers (pericardial fluid is necessary as a lubricant for the heart movement).

Besides lubrication, percardium also protects heart from infections, fixes it and limits its movements.

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3 years ago

Infer How do dominant and recessive<br> factors interact? sc.7..16.1

Rama09 [41]

Answer:

The resulting characteristic is due to both alleles being expressed equally. An example of this is the blood group AB which is the result of codominance of the A and B dominant alleles. Recessive alleles only show their effect if the individual has two copies of the allele (also known as being homozygous) If you were to talk about dominant and recessive factors in human traits, such as brown/green eyes, brown would be dominant, only needing to be in 1 parent to pass down to the child. (i have no idea if this helps or not-- it's all i know.. sorry, ;w;)

Explanation:

6 0

3 years ago

The cell cycle: A) is the same length of time for all cells. B) is when a cell dies. C) is different lengths of time for differe

ahrayia [7]

I believe the answer is C) is different lengths of time for different types of cells.

6 0

2 years ago

In E. coli protein synthesis, the initiation complex contains

Ksenya-84 [330]

Answer:

The correct answer will be option-C.

Explanation:

The process of translation in prokaryotes is complex process and proceeds in three steps: initiation, elongation and termination.

1. Ribosomal subunits: 50S (5S and 23S subunit) and 30S (16S and proteins).

2. Initiation factors: IF1, IF-2 and IF-3 which help in the formation of assembly.

3 GTP: guanosine triphosphate as a source of energy.

4. Charged tRNA: with N-formylmethionine is the first amino acid.

5. mRNA: the RNA to be translated.

Since the option contains both 50S and 16S components of ribosome thus, Option-C is the correct answer.

7 0

3 years ago