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Nana76 [90]
2 years ago
8

HELPPPP ASAP Examine the Punnett Square below (Picuture is on here)

Biology
1 answer:
In-s [12.5K]2 years ago
8 0

Answer:

B

Explanation:

i jus know

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Use a Punnett square diagram to show why, for each pregnancy, the chances of giving birth to either a boy or a girl are 50-50. E
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Answer:

Because the offspring of a male and female are always going to be xx, xx, xy, or xy.

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Remember that men have different reproductive chromesomes than women. Women have 2 x chromesomes(xx) while men have 1 x and 1 y(xy). These are given down to their offspring.

So we can write the this out in a punnet square as(link down below).

After you see the visual, you will find that the genotypes are xx, xx, xy, xy.

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So with this, we can conclude that 2/4 of offspring will always be male and 2 will be female. And as you well know 2/4 is 1/2 which is 50%.

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