1. Column I Column II
(i) Gregor Jonann Mendel (a) DNA
structure model
(ii) Charles Darwin (b) Theory of
inheritance of acquired
characters
(iii) Jean Baptiste Lamarck (c) Theory
of natural selection
(iv) Watson and Crick (d) Laws of
Genetics
Ans. (i – d), (ii – c),
(iii – b), (iv – a).
2. Column I Column II
(i) Heredity (a) Structural component
of
chromosome
(ii) Progeny (b) Remains of ancient
life forms
(iii) DNA (c) Inheritance of traits
(iv) Gene (d) Offsprings
(e) Fragment of DNA
Ans. (i – c), (ii – d),
(iii – a), (iv – e).
3. Column I Column II
(i) Monohybrid cross (a) Character
expressed in F1
generation
(ii) Dihybrid cross (b) Cross
involving only one pair of
characters
(iii) Dominant trait (c) Character
suppressed in F1
generation
(iv) Recessive trait (d) Cross
involving only two pairs of
characters
Ans. (i – b), (ii – d),
(iii – a), (iv – c).
4. Column I Column II
(i) Heterozygous male (a)
Lepidopterans
(ii) Environmental sex reversal (b)
Human female
(iii) Homozygous female (c) Human male
(iv) Homozygous male (d) Amphibians
Ans. (i – c), (ii – d),
(iii – b), (iv – a).
5. Column I Column II
(i) Monohybrid phenotypic ratio (a) 9
: 3 : 3 : 1
(ii) Dihybrid phenotypic ratio (b) 1 :
2 : 1 : 2 : 4 : 2 : 2 : 1 : 1 : 1
(iii) Monohybrid genotypic ratio (c) 3
: 1
(iv) Dihybrid genotypic ratio (d) 1 :
2 : 1
Ans. (i – c), (ii – a),
(iii – d), (iv – b).
6. Column I Column II
(i) Yellow and wrinkled seeds (a) yyrr
(ii) Green and round seeds (b) YyRr
(iii) Yellow and round seeds (c) YYrr
(iv) Green and wrinkled seeds (d) yyRr
Ans. (i – c), (ii – d), (iii –
b), (iv – a).
