Improvement of the human race through hereditary qualities is called:

Which of the following statements is correct?

Choose the correct sequence of True $(T)$ and False $(F)$ statements:
$(i)$ Queen Elizabeth shows a number of haemophilic descendants.
$(ii)$ Variation in blood group prevalences is due to incomplete dominance.
$(iii)$ Drosophila has three pairs of autosomal chromosomes.
$(iv)$ In birds,the female is heterozygous.

The phenotype of an organism is the result of?

Differences in twins suggest

In which one of the following combinations $(a-d)$ of the number of chromosomes is the present day hexaploid wheat correctly represented?

Combination

Monosomic,Haploid,Nullisomic,Trisomic