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Dafna11 [192]
3 years ago
13

HELP PLEASEE

Biology
1 answer:
Cloud [144]3 years ago
5 0

Answer:

A) Channel Protein

Explanation:

Channel proteins span the membrane and make hydrophilic tunnels across it, allowing their target molecules to pass through by diffusion.

Channels are very selective and will accept only one type of molecule to transport

A channel protein, a type of transport protein, acts like a pore in the membrane that lets water molecules or small ions through quickly.

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Interestingly, even though hemophilia in the royal families began in England, they were actually the only one of these four fami
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Answer:

<h2>Alice's daughter Alix =X X*   </h2><h2>George V= XY </h2><h2>Progeny  are;</h2><h2>XX, XY, X*X, X*Y </h2><h2>50 % males would be  infected </h2><h2>50% male normal</h2><h2>50% female normal, </h2><h2>50 female carrier. </h2>

Explanation:

Hemophilia is an inherited disease and it follows  an X-linked recessive pattern. The genes for hemophilia disease are located on the X chromosome. In males one mutated copy of the chromosome X  is sufficient to cause the condition, because male contain only one gene. Female  contain XX chromosome, so both the chromosome must have mutated for causing this disease.

According to  study of  Queen Victoria (1891-1901) of England, Alice's daughter Alix was X linked carrier and George V was normal male,

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progeny  

XX, XY, X*X, X*Y

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50% female normal,

50 female carrier.

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