First of all, hemophilia is an x-linked recessive and recessive disease. So it's a genetic disease.
- Therefore, there is no possibility of snatching it from his son. It can come from mom or dad. If the mother and father do not have this disease, as in the question, the mother carries this disease recessively. If it was a girl, she would be less likely to get the disease, as she would have to inherit the genotype of this disease from both the mother and the father. however, since her children are boys, she received the disease gene from the mother's recessive gene region. Therefore, the boy has hemophilia in the XhY genotype.
(1) All the genotypes are as follows: AABB, AaBB, AABb, AaBb, aaBB, aaBb, AAbb, Aabb, aabb.
(2) Assuming that Aa is dominant and Bb is recessive, there will be 9 phenotypes with both A and B allele dominant (i.e. AaBb, AABb); there will be 3 phenotypes with just the A allele dominant (i.e. Aabb, AAbb); there will be 3 phenotypes with just the B allele dominant (i.e. aaBb, aaBB); and there will be 1 phenotype with both alleles recessive (i.e. aabb). The phenotypic ratio in this case is 9:3:3:1.
(3) The probability of producing an offspring with the aabb genotype is 1/16 or 6%.
Feldspar and quartz are the correct answers
The correct question is : The given statement is True or False
While studying a sample for height differences, researchers observed that the height of the participants varied significantly regardless of whether the participants' parents were short or tall. This suggests that the physical characteristic of height is most likely an example of Polygenetic inheritance.
Answer: True
Explanation:
The poly genetic inheritance can be defined as the characters which is not only controlled by the single gene in the body it is controlled by the multiple genes of the body.
The genes are large in quantity but the effect is very small. There are many characters in the body which is polygenic in nature.
These are height of offspring, skin color of the offspring, eye color of the offspring, et cetera.
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