1. | It decreases the productivity of inbred population, after continuous inbreeding. |
2. | It decreases homozygosity. |
3. | It exposes harmful recessive genes that are eliminated by selection. |
4. | Elimination of less desirable genes and accumulation of superior genes takes place due to it. |
1. | Fertilised eggs at 4 to 6 cells - stages are recovered non-surgically from a super-ovulating cow and transferred to a surrogate mother. |
2. | It is used to increase herd size in a short time |
3. | Cow is administered with hormones to induce super-ovulation. |
4. | Super-ovulating cow is either mated with an elite bull or is artificially inseminated |
Assertion (A): | Germplasm collection is a very time consuming and tedious process. |
Reason (R): | Germplasm collection is entire collection of antibiotic resistant genes. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | In plant breeding experiment superior recombinants among hybrid progeny are self-pollinated to achieve homozygosity. |
Reason (R): | Characters in homozygous condition do not segregate. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Parbhani Kranti is high yielding variety of okra which is resistant to yellow mosaic virus. |
Reason (R): | Genes for high yield and resistance to yellow mosaic virus are transferred from cultivated varieties. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Apical bud and axillary bud are most suitable explants to produce virus free plants. |
Reason (R): | Meristems have rapid rate of cell division and are free from viruses. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Plants produced through micropropagation are called somaclones. |
Reason (R): | Each of the plant of somaclones morphologically identical but genetically non-identical to parent plant. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |