A woman is heterozygous for blue eyes. If she were to have child with a man who is homozygous recessive for brown eyes, what is
the probability of this child having blue eyes? 0% 25% 50% 75%
2 answers:
Answer:
50%
Explanation:
According to the given information, the woman is heterozygous for blue eyes. It means that the blue eye color is a dominant trait over brown eyes since heterozygous carrier genotypes are present for dominant alleles only.
Let's assume that the allele for blue eye color is "B" and the one for brown eye color is "b". Therefore, the genotype of heterozygous woman would be "Bb" and the genotype of the homozygous recessive male would be "bb".
A cross between Bb x bb gives following phenotype ratio = 50% brown eye : 50% blue eye
There is 50% probability of their child to have blue eye color.
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Answer:
(2) 8 ºC
Explanation:
The range of the temperatures from the uppermost layers of the ocean - around 100 to 150 m -, which in this case is 125 m, is not always constant as they fluctuate due to the atmospheric heating and cooling, and also due to seasonal variations.
However, if we base our answer on the table below, we would determinate that the approximate water temperature at a depth of 125 meters is 8 ºC (2). This is because, if we observe, the temperature at 100 m is 12 ºC, while at 150 m is 5 ºC. Therefore, the temperature at 125 m should be higher than 5 ºC and lower than 12 ºC, that is 8 ºC.
