Presence of a single allele of a character in a diploid organism is known as $:$

The $F_2$ dihybrid ratio $9 : 3 : 4$ is explained on the basis of

Male pattern baldness is a/an..... trait.

Give differences: Incomplete dominance and Co-dominance.

Identify the correct and incorrect statements from the following:
$(1)$ Mendel is considered the father of modern genetics.
$(2)$ Down's syndrome is a sex-linked chromosomal disorder.
$(3)$ Sickle cell anemia is an example of point mutation.
$(4)$ Color blindness is a hereditary trait.
$(5)$ Triploid female flies are found in Drosophila.

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