The correct answer to this question is B. Some members of the Fugate family had a genetic condition called methemoglobinemia, that gave a blue color to their skin. The gene causing this disease is an autosomal recessive gene, so to have this condition you need to be homozygotes for this recessive gene. Gene flow was prevalent in the Fugate family since not all of the children had blue complexion, but only four of them. The three children that did not have blue complexion, had the dominant allele, probably through gene migration from another population nearby. Also, since it is easier nowadays to travel, two separate populations could meet more easily. This increases the incidence of gene flow and explains the reduction of the occurrence of the condition.
Answer:
False
Explanation:
Candling is used to study the embryo. An intense source of light is placed behind the egg to visualize the internal developments and changes. Here, candle is used as a source of light.
Bacteria and viruses cannot be observed in the light of a candle. However a virus is much smaller as compared to a bacteria and it can be seen only in electron microscope.
Thus, the given statement is false
The percent is 75% that the dauther will have free earlobes because they are dominant.
