- 1(current)
Q. No.| 1. | Henking | 2. | Thomas Hunt Morgan |
| 3. | Sutton and Boveri | 4. | Alfred Sturtevant |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | Mendel's law of Independent assortment does not hold good for the genes that are located closely on the same chromosome. |
| Reason (R): | Closely located genes assort independently. |
In the light of the above statements, choose the correct answer from the options given below:
| 1. | (A) is false, (R) is true. |
| 2. | Both (A) and (R) are true and (R) correctly explains (A). |
| 3. | Both (A) and (R) are false and (R) does not correctly explain (A). |
| 4. | (A) is true, (R) is false. |
The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%. What will be the sequence of these genes on a linear chromosome?
1. a, c, b, d
2. a, d, b, c
3. d, b, a, c
4. a, b, c, d
The linkage map of the X-chromosome of fruitfly has 66 units, with yellow body gene (y) at one end and bobbed hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be:
1. 60%
2. > 50%
3. ≤ 50%
4. 100%
A genetic map is one that:
1. Establishes sites of the genes on a chromosome
2. Establishes the various stages in gene evolution
3. Shows the stages during the cell division
4. Shows the distribution of various species in a region
- 1(current)
Q. No.
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