X And Y Chromosomes Flashcards

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1
Q

How many pairs of chromosomes in every body cell?

A

23

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2
Q

How many of the matched pairs of chromosomes control characteristics?

A

22

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3
Q

What are the 23rd pair of chromosomes labelled as?

A

XX or XY

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4
Q

What chromosomes fo males have?

A

XY

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5
Q

What chromosome do females have?

A

XX

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6
Q

What are the chances each sperm cell gets an X chromosome?

A

50%

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7
Q

What are the chances a sperm cell gets a Y chromosome?

A

50%

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8
Q

What do genetic diagrams show?

A

Possible combinations of gametes

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9
Q

2 types of genetic diagram

A

Punnet square

Genetic diagram

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