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Jlenok [28]
2 years ago
5

30 POINTS!!!! URGENT What are the layers of the atmosphere from closest to farthest from Earth's surface? A. stratosphere, tropo

sphere, mesosphere B. mesosphere, troposphere, stratosphere C. troposphere, stratosphere, mesosphere D. mesosphere, ionosphere, stratosphere
Biology
1 answer:
oksian1 [2.3K]2 years ago
7 0

Answer: it is C.

Explanation:

Troposphere comes first in the atmosphere. Then it is stratosphere. Last, it is mesosphere.

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Explanation:

The Genotype of the  woman is XCbXN

The man XNY

Since the allele for the color blindness is carried on one of the X -chromosomes of the  carrier mother, then  the male children will be color blind or carrier deopending on the defective gene they inherited. Since they will receive the defective or normal  allele from the  mothers,but the female will carriers or normal because they will inherit either defective allele or normal allele from the mother,but normal  X allele from the father.

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1. XNY vs XCbXN.Then the one of the  boys will be colorblind  and the one of  girls will be carriers. XNXCb, XNXN, XCbY,XNY  50 %

2.If the two boys take the effective genes from the mothers. and none of the girls take the defective alelle

Then the two boys will be colorblind and the girls will be carrries XcbY,XcbY and XNXN XNXN.(normal girls).

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They can not have a color blind girl.Since the father is normal It takes two colorblind X-chromosome to give a girl.

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