Answer:
a small deletion occurs in the nucleotide sequence at the aminoterminal of the gene in the signal sequence
Explanation:
A deletion in the sequence of nucleotide that code for the small signal sequence responsible will affect the release of insulin outside the cells because the signal sequence is responsible for carrying the insulin outside the cells. The cells of pancreas are producing the insulin normally but due to mutation in the signal sequence it can not release out of the cells and accumulate inside the cells.
Answer:
Second option
Explanation:
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A. They both have a mitochondria
Answer:
1/4
Explanation:
The man is brown eyed so it can have both BB and Bb genotype but his mother was blue eyed and blue eyes is a recessive trait so his mother must have been bb. He would have got one "b" allele from her so his genotype must be Bb. Woman is also brown eyed with a blue type parent so her genotype must be Bb.
Bb X Bb :
B b
B BB Bb
b Bb bb
As evident, only 1/4 progeny will have recessive bb genotype which will result into blue eyes. So the probability that this couple will have a blue-eyed child is 1/4.