1. Complementary gene produces a phenotypic ratio
a) 9:7
b) 13:3
c) 15:1
d) 9:3:3:1
2. Nicotiana rustica is an amphidiploid between?
a) Nicotiana tomentosa and N sylvestris
b) N sylvestris and N tomentosa
c) N paniculata and N undulata
d) None of the above
3. Translocation homozygotes lead to alternation in
a) gene number
b) linkage map
c) sequence of genes
d) linkage group
4. If a dihybrid without genetic interaction is selfed the following ratio is obtained in F2
a) 9:3:3:1
b) 9:3:4
c) 9:7
d) 15: 1
5. A trihybrid plant (Aa, Bb, Cc) on selfing will produce the following numbers of genotype
a) 16
b) 9
c) 27
d) 64
6. Mutation is known to be due to change in genes
a) loss
b) degeneration
c) addition
d) all of these
7. Triticale is a synthetic allopolyploid, developed from cross between
a) Triticum aestivum x Secale cereale
b) Triticum turgidium x Secale cereale
c) Secale cereal x Triticum turgidum
d) None of these
8. Which of the following is not correct?
Meiosis & Functions
a)Leptotene - RNA & Protein
b) Zygotene - Chromosome become shorter and thicker
c) Diplotene - Nucleus increase in size
d) Pachytene - Crossing over take place
9. Pseudo dominance is associated with
a) deletion
b) detection
c) duplication
d) translocation
10. Which of the following statements are correct mitosis?
I. The term Mitosis was coined by Flemming in 1882
II. They produce two identical daughter and nuclei from the parent nucleus
III. Mitosis occurs in somatic cells, it is called somatic cell division
IV. Segregation and recombination take plan diving mitosis
V. The whole process of mitosis consists of only one homontyic division
a)
b) II, III and V
c)
d) I, II, III and V
Answers:
1. a) 9:7
2.
3.
4.
5. c) 27
6.
7. d) None of the above
8.
9. a) deletion
10.d) I, II, III and V
