Match each item in Column I with one in Column II and select your answer from the codes given:
Column I | Column II | ||
Scientist | Contribution | ||
A. | Francis Crick | a. | Breaking the genetic code |
B. | Nirenberg | b. | Established Coenorhabditiselegans as a model genetics study organism |
C. | Benzer | c. | Central dogma of molecular biology |
D. | Brenner | d. | Bacteriophage genetics |
Codes:
A. | B. | C. | D. | |
1. | c | a | d | b |
2. | c | a | b | d |
3. | a | b | c | d |
4. | a | c | d | b |
Which of the following father and son duos received Nobel Prize?
1. | Nirenbergs | 2. | Kornbergs |
3. | Darwins | 4. | Lederbergs |
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 |
The branch of biology that deals with inheritance, as well as the variation of characters from parents to offspring, is called as:
1. | Evolution | 2. | Genetics |
3. | Developmental biology | 4. | Forensics |
Identify the incorrect statement regarding experiments on Pisum sativum by Gregor Mendel:
1. | He conducted hybridisation experiments on garden peas for seven years (1856-1863) and proposed the laws of inheritance in living organisms. |
2. | It was for the first time that statistical analysis and mathematical logic were applied to problems in biology. |
3. | Unfortunately his experiments had a small sampling size, which gave less credibility to the data that he collected. |
4. | He investigated characters in the garden pea plant that were manifested as two opposing traits. |
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 |
Which of the following was not a character studied by Mendel in garden pea?
1. | Flower position | 2. | Pod shape |
3. | Flower colour | 4. | Pod position |
1. Flower Colour | 2. Pod Shape | ||
Dominant | Recessive | Dominant | Recessive |
3. Flower Position | 4. Stem Height | ||
Dominant | Recessive | Dominant | Recessive |
Statement I: | A is Emasculation where the anthers are removed only after maturity. |
Statement II: | B is Pollination and it should be followed by bagging the flowers in the female parent. |