Meiosis Flashcards

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1
Q

What happens during reproduction?

A

The two sex cells combine to form a new individual

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2
Q

Why do the gametes only have half the number of chromosomes?

A

So that when the gametes fuse the child has a full set of chromosomes (half from the mother and half from the father) in order to allow variation

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3
Q

What is meiosis?

A

Cell division which produces cells which have half the normal number of chromosomes

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4
Q

What are the stages of meiosis?

A
  • the DNA duplicates so that there are two of each chromosome
  • the chromosomes are lined up then split so that each cell has only one of each chromosomes
  • the arms of the chromosomes are then pulled apart so that their are four gametes each with only a single set of chromosomes
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5
Q

How many chromosomes do gametes have?

A

23 single chromosomes

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