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.
2: carbon can be found in the atmosphere, rocks, soil, & fossil fuels,
Caspian sea
Explanation:
The Caspian sea is actually a very large lake. It is called an endoheric lake in that it does not flow outwards.
- The Caspian sea is completely surrounded by land in all sides
- It is located in Asia and bordered by Iran, Kazakhstan and Azerbaijan.
- It is an inland, saline lake.
- It is the world's largest inland body of water.
learn more:
Caspian sea brainly.com/question/9557333
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The answer would be fluid permeability!
