In his classic experiments on pea plants Mendel did not use?
1. Seed color
2. Pod length
3. Seed shape
4. Flower position
How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?
1. | Five | 2. | Six |
3. | Eight | 4. | Seven |
Phenotype of an organism is the result of:
1. mutations and linkages
2. cytoplasmic effects and nutrition
3. environmental changes and sexual dimorpgism
4. genotype and environment interactions
In Mendel's experiments with garden peas, round seed shape (RR) was dominant over wrinkled seeds (rr), and yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY x rryy?
1. | Only round seeds with green cotyledons |
2. | Only wrinkled seeds with yellow cotyledons |
3. | Only wrinkled seeds with green cotyledons |
4. | Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons |