Consider the given two statements:
I: | Success of a breeding program usually depends on the creation of the desired genetic variation. |
II: | Any character of a crop can be improved only when genetic variation is present for the character. |
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. I is correct and II is incorrect.
4. Both I and II are incorrect.
The mutual relationship between animals and humans who have an influence on their care and reproduction is called:
1. | Animal husbandry | 2. | Domestication |
3. | Taming | 4. | Dairy farming |
Which of the following steps in a plant breeding program actually brings about the improvement?
1. Germplasm collection
2. Hybridization
3. Selection of superior recombinant
4. Testing of the cultivars
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Consider the following statements:
I: | Self-pollination or selfing is the extreme form of inbreeding. |
II: | Loss of vigor associated with inbreeding is inbreeding depression. |
III: | Self-pollinated crops do not usually show the ill effects of inbreeding. |
The correct statements are:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Rinderpest is an animal disease caused by:
1. | Bacterium | 2. | Virus |
3. | Helminth | 4. | Protozoan |
Somatic embryo regeneration in micropropagation is induced by high concentrations of:
1. | Cytokinins | 2. | Gibberellins |
3. | Auxins | 4. | Zinc |
Interspecific hybridization and chromosome doubling have led to the creation of:
I. The modern wheat, Triticum aestivum
II. The first man-made cereal, Triticale
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
Which of the following is important for successful MOET programs in cattle breeding?
1. | The age of the donor and the surrogate must be similar |
2. | There must be estrus synchronization between the donor and the surrogate |
3. | Both donor and surrogate undergo superovulation protocol |
4. | The bull and the cow must be of the same breed |
Consider the given two statements:
I: | Inbreeding results in more recessive traits manifesting themselves in the progeny. |
II: | Recessive traits can only occur in an offspring if present in both parents' genomes. |
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. I is correct and II is incorrect.
4. Both I and II are incorrect.
Suspension cultures grow much faster than callus culture provided they are:
1. fed with nutrients continuously
2. not exposed to sunlight
3. constantly agitated
4. deprived of oxygen