Introduction To Genetics 2
High-Yield Trend
Questions 4 MCQs
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 |
In his classic experiments on pea plants Mendel did not use?
1. Seed color
2. Pod length
3. Seed shape
4. Flower position
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
Given below are two statements:
| Statement I: | Mendel studied seven pairs of contrasting traits in pea plants and proposed the Laws of Inheritance |
| Statement II: | Seven characters examined by Mendel in his experiment on pea plants were seed shape and colour, flower colour, pod shape and colour, flower position and stem height |
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.