1. Franklin Stahl coined the term "linkage".
2. Punnett square was developed by a British scientist.
3. Spliceosomes take part in translation.
4. Transduction was discovered by S. Altman.
Which of the following characteristics represent the 'Inheritance of blood groups' in humans?
a. Dominance
b. Co-dominance
c. Multiple allelism
d. Incomplete dominance
e. Polygenic inheritance
1. | b, c, and e | 2. | a, b and c |
3. | b, d, and e | 4. | a, c, and e |
A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by:
1. | Only daughters | 2. | Only sons |
3. | Only grandchildren | 4. | Both sons and daughters |
Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement:
1. | Both are due to a quantitative defect in globin chain synthesis |
2. | Thalassemia is due to less synthesis of globin molecules |
3. | Sickle cell anemia is due to a quantitative problem of globin molecules |
4. | Both are due to a qualitative defect in globin chain synthesis |
The genotypes of a husband and wife are IAIB and IAi respectively. Among the blood types of their children, how many different genotypes and phenotypes are possible?
1. 3 genotypes; 4 phenotypes
2. 4 genotypes; 3 phenotypes
3. 4 genotypes; 4 phenotypes
4. 3 genotypes; 3 phenotypes
A disease caused by an autosomal primary non-disjunction is:
1. Klinefelter's Syndrome
2. Turner's Syndrome
3. Sickle Cell Anemia
4. Down's Syndrome
Among the following characters, which one was not considered by Mendel in his experiments on pea?
1. Trichomes-Gladular or non-gladular
2. Seed-green or yellow
3. Pod-inflated or constricted
4. Stem-Tall or Dwarf
Which one from those given below is the period for Mendel's hybridization experiments?
1. | 1840-1850 | 2. | 1857-1869 |
3. | 1870-1877 | 4. | 1856-1863 |
The mechanism that causes a gene to move from one linkage group to another is called
(1) inversion
(2) duplication
(3) translocation
(4) crossing-over