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If the chromosome number were not reduced during meiosis, the resulting gametes would have double the normal number of chromosomes. This would lead to an imbalance in the genetic material when the gametes combine during fertilization, resulting in genetic abnormalities and potentially nonviable offspring.

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5mo ago

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What happen to chromosome of a cell in order for meiosis to begin?

they have to duplicate


What event occurs in an organism when a chromosome is not copied correctly during meiosis?

When a chromosome is not copied correctly during meiosis, it can lead to genetic mutations or chromosomal abnormalities in the resulting gametes. This can result in offspring with genetic disorders or developmental problems. In some cases, it can also lead to infertility or miscarriages.


What happen if meiosis did not occur to produce sex cells?

the chromosome number would double in every generation


What might happen if an egg cell received two X chromosomes during meiosis instead of one?

The offspring could have three X chromosomes or two X chromosomes and a Y chromosome.


Why is it important for cell division by meiosis to happen?

Meiosis is crucial for sexual reproduction as it reduces the chromosome number by half, producing gametes (sperm and eggs) that are genetically diverse. This genetic variation is essential for evolution and adaptation, allowing populations to respond to environmental changes. Additionally, meiosis ensures that when gametes fuse during fertilization, the resulting zygote has the correct diploid chromosome number, maintaining genetic stability across generations.


What k must happen before meiosis can begin?

A duplication of the chromosomes is what must happen before meiosis can begin.


If nondisjunction occurs during meiosis?

It is the failure of chromosome pairs to separate properly during cell division.


This extra chromosome in a gamete occurs as a result of?

This extra chromosome in a gamete occurs as a result of a process called nondisjunction, where chromosomes fail to separate properly during meiosis. As a result, one gamete may end up with an extra chromosome, leading to conditions such as Down syndrome when that gamete contributes to fertilization. Nondisjunction can happen during either the first or second meiotic division and can affect any of the chromosomes.


What is ploidy reduction?

Ploidy reduction is a process in which the number of sets of chromosomes in a cell is reduced. This can happen during meiosis, the process of cell division that produces gametes (sperm and egg cells) with half the normal number of chromosomes. Ploidy reduction is important for sexual reproduction to maintain the correct chromosome number in the offspring.


What would most likely happen to the alleles for two different traits during meiosis if they were located on the same chromosomes?

Depending on their relative location on the chromosome the alleles will remain on the same chromosome or be separated in the crossing over part of meotic divsion. The closer they are to each other the more likely they will stay together.


Does DNA replication happen before or during Meiosis?

It happens during interphase of the cell cycle.


What must happen before meiosis begins?

A duplication of the chromosomes is what must happen before meiosis can begin.