The allele for tallness is dominant over that of dwarfness. This is called:
1.  Law of independent assortment
2.  Law of segregation
3.  Law of unit character
4.  Law of dominance

Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants tall, red flowered:

1. 50%

2. 75%

3. 25%

4. 100%

A plant of F₁-generation with genotype "AABbCC". On selfing of this plant what is the phenotypic ratio in F₂-generation:

1. 3 : 1

2. 1 : 1

3. 9 : 3 : 3 : 1

4. 27 : 9 : 9 : 9 : 3 : 3 : 3 : 1

In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt:

1. 50% will be tall with red fruit

2. 75% will be tall with red fruit

3. All the offspring will be tall with red fruit

4. 25% will be tall with red fruit

When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is:

1. Pentaploidy

2. Diploidy

3. Triploidy

4. Tetraploidy