Which of the following characteristics represent the 'Inheritance of blood groups' in humans?

a. Dominance

b. Co-dominance

c. Multiple allelism

d. Incomplete dominance

e. Polygenic inheritance

A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by:

Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement:

The genotypes of a husband and wife are I^AI^B and I^Ai respectively. Among the blood types of their children, how many different genotypes and phenotypes are possible?

1. 3 genotypes; 4 phenotypes

2. 4 genotypes; 3 phenotypes

3. 4 genotypes; 4 phenotypes

4. 3 genotypes; 3 phenotypes

A disease caused by an autosomal primary non-disjunction is:

1. Klinefelter's Syndrome

2. Turner's Syndrome

3. Sickle Cell Anemia

4. Down's Syndrome

Among the following characters, which one was not considered by Mendel in his experiments on pea?

1. Trichomes-Gladular or non-gladular

2. Seed-green or yellow

3. Pod-inflated or constricted

4. Stem-Tall or Dwarf

Which one from those given below is the period for Mendel's hybridization experiments?

The mechanism that causes a gene to move from one linkage group to another is called 

(1) inversion

(2) duplication

(3) translocation

(4) crossing-over