The famous double helix model of DNA was proposed by Watson and Crick in ____ and they shared Nobel Prize for Physiology or Medicine in ________ for their effort.
1. | 1951, 1971 | 2. | 1943, 1963 |
3. | 1953, 1962 | 4. | 1969, 1972 |
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A plant, on repeated self-pollination, preserves the trait expressed for many generations. Such a plant is said to be:
1. | Panmictic | 2. | Homologous |
3. | Apomictic | 4. | Pure line |
Which of the following is a recessive trait for a character chosen by Mendel in garden pea?
1. | Violet flower colour | 2. | Yellow pod colour |
3. | Axial flower position | 4. | Tall stem height |
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Which of the following is a recessive trait in Pisum sativum?
1. | Yellow pod color | 2. | Axial flower position |
3. | Inflated pod shape | 4. | Violet flower color |
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If Mendel might have studied 7 pairs of characters in a plant with 12 chromosomes instead of 14 then:
1. | He could not discover an independent assortment |
2. | He might have discovered linkage |
3. | He might have discovered crossing over |
4. | He might have not observed dominance |