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aleksandrvk [35]
3 years ago
5

Help i’m doing a quiz right now.

Biology
1 answer:
fenix001 [56]3 years ago
7 0
C is the answer hopefully it is
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Una mujer lleva en uno de sus cromosomas X un gen letal recesivo (l), y en el otro alelo dominante normal (L). ¿Cuál es la propo
nlexa [21]

Question in English:

A female carries a recessive lethal gene (l) on one of her X chromosomes, and a normal dominant allele (L) on the other. What is the sex ratio to be expected in this woman's dependency if she marries a normal man?

Answer:

2/3 females

1/3 males

Explanation:

Females have two X chromosomes (XX) and males have an X and a Y chromosome (XY).

The genotype of the female is XLXl. The genotype of the male is XLY, since he is normal.

The possible genotypes are:

<u>                            XL                  Xl</u>

<u>XL</u>                     <em>XLXL             XLXl</em>

<u>Y</u>                       <em>XLY               </em><em>XlY</em>

<em />

All female offspring will be normal as they will always have one normal copy of the X chromosome from their father.

50% of the male offspring will be normal, but 50% will inherit the lethal gene from their mother.

Because the allele is lethal, that means XlY males will not be born.

That means 2/3 of the children will be females, and 1/3 will be males.

8 0
3 years ago
Help me do this
Aneli [31]

thats a whole L:)

i dont remember this

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2 years ago
The probability that Janice will attend math class today is 62%. The probability that Ellie will attend math class if Janice att
xz_007 [3.2K]
The correct answer is <span>d. 62%.

Since Ellie's decision will be based 100 % on Janice's decision, the probability that both will attend the class is 62 % because that is the chance that Janice will attend the class. Since Ellie just depends on Janice, the correct answer is </span><span>d. 62%. I hope this answer helped you. </span>
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3 years ago
Put in order from first to last
san4es73 [151]
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When researchers create __________, they are destroying a piece of the brain. A. Holes B. Currents C. Images D. Lesions Please s
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When researchers create lesions, they are destroying a piece of the brain.

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2 years ago
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