Use the pedigree to answer the questions below:

Females with haemophilia have an easy genotype to indentify. They are all `X^(n)X^(n)`. Both recessive alleles must be present for a femalc to have haemophilia. If one dominant allele is present `(X^(N))`, the individual would be normal for clotting. How many females have the genotype `X^(n)X^(n)`?

If a female having gene for haemophilia and colour-blindness on its one X-chromosome marries a normal male then what are the chances in their offsprings :

The value of n for which the length of the sub- normal at any point of the curve y^(3)=a^(1-n)x^(2n) must be constant is

Haemophilia is a sex linked recessive disorder of humans. The pedigree chart given below shows the inheritance of Haemophilia in one family. Study the pattern of inheritance and answer the questions given. (a) Give all the possible genotypes of the members 4, 5 and 6 in the pedigree chart. (b) A blood test shows that the individual 14 is a carrier of gaemophilia. The member numbered 15 has recently married the member numbered 14. What is the probability that their first child will be a haemophilic male ? Show with the help of Punnett square.

Direction: Read the given information carefully and answer the questions that are given below. There are seven persons in a family namely, D, G, J, K, N, M, and P. N is the mother of J. D is the son-in-law of N. G is the son of D. K is the only aunt of G. D does not have any brother-in-law. N and M are a married couple. D has only one brother. How many female members are there in the family?

Using the principle of mathematical induction, prove each of the following for all n in N (x^(2n)-1) is divisible by (x-1) and (x+1) .

If n is an even positive integer,then find the value of x if the greatest term in the expansion of (1+x)^(n) may have the greatest coefficient also.

How many types of gametes will be produced by a female Drosophilla having following arrangement of two genes ( y^(+) and w^(+) ) on X-chromosome ?

Let f : N to N : f(x) =2 x for all x in N Show that f is one -one and into.

Using the principle of mathematical induction. Prove that (x^(n)-y^(n)) is divisible by (x-y) for all n in N .