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
| 1. | b, c, and e | 2. | a, b and c |
| 3. | b, d, and e | 4. | a, c, and e |
The genotypes of a husband and wife are IAIB and IAi 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 true-breeding plant is:
| 1. | one that is able to breed on its own |
| 2. | produced due to cross-pollination among unrelated plants |
| 3. | near homozygous and produces offspring of its own kind |
| 4. | always homozygous recessive in its genetic constitution |