Answer:
The correct answer is - option C.
Explanation:
CFTR is a short form of cystic fibrosis transmembrane conductance regulator protein which is caused by a recessive mutation in this protein. This mutation results in the accumulation of mucus in secretory organs.
As the disease is a recessive disease, for the mutant phenotype to expressed both copies of the allele required to be recessive.
The mother is negative for the CFTR. Hence, she will not transfer the mutant allele to her child So, the child would have a wild-type phenotype even if the father having two copies of recessive allele.
Thus, the correct answer is - option C.
The Answer to this Questions is <span><span> <em>SHALE</em>.
</span></span><span><span><em>"Which sedimentary rock is made mostly of clay minerals?"</em>
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<span><em>Shale </em></span><em />is the sedimentary rock mostly made of clay minerals.
</span>Shale is Soft, finely stratified sedimentary rock that formed from consolidated mud or clay and can be split easily into fragile slabs.<span>
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Answer:
Explain
well just do it i belive in you dont try to act all diffrent or cool that makes people not like u just be yourself
