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Choose all the answers that apply.

Lupe is a carrier for color blindness. Her husband, Clifford, is colorblind. If lupe and Clifford have four children, theoretical chance would predict ____.

two will be colorblind

one will be a carrier

two will not be colorblind

there is a 50 percent chance a boy will be colorblind

all children will be colorblind

User Eggyal
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2 Answers

4 votes
all children will be colorblind and one will be a carrier
hope this helps
User Iizno
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3 votes

Answer:

The correct answer is - A, B, C, and D.

Step-by-step explanation:

Colorblindness is a sex-linked recessive genetic disease. It is present in females only if both X chromosomes are homozygous recessive if only one copy of the recessive gene present female will be considered as a carrier and normal. In males, even one copy of the diseased gene can cause color blindness as they carry one X chromosome.

So kids of Lupa XHXh and Clifford XhY will be formed by gametes XH, Xh and Xh, Y of respective parents. By the cross of these offspring will be XHXh (carrier normal female), XHY( normal male), XhXh ( disease female) and XhY (color blind male).

Thus, the correct answer is option -A, B, C, and D.

User Tobi Oetiker
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