Q.1. The Molya disease of wheat is caused by:
(1) Heterodera avenae
(2) Anguina tritici
(3) Rotylenchus robustus
(4) Pratylenchus penetrans
(5) Puccinia graminis avenae
Ans: (1) Heterodera avenae
Q.2. In Agaricus the fruiting body is made up of:
(1) Tertiary mycelium
(2) Secondary mycelium
(3) Primary mycelium
(4) Diploid mycelium
(5) Haploid mycelium
Ans: (2) Secondary mycelium
Q.3. The protective covering of sterile hyphae around an ascocarp is termed as
(1) Periderm
(2) Peridium
(3) Epiderm
(3) Epiderm
(4) Appendages
(5) Ectoderm
Ans: (2) Peridium
Q.4. A haploid cell contains:
(1) Damaged chromosomes
(2) Only half the full complement of chromosomes
(3) The usual complement of chromosomes
(4) Twice the full complement of chromosomes
(5) The usual complement plus one chromosomes
Ans: (2) Only half the full complement of chromosomes
Q.5. The backbones of the DNA double helix are made of
(1) Amino acids
(2) Lipids
(3) Sugars and Phosphates
(4) RNA
(5) Lipoproteins
Ans: (3) Sugars and Phosphates
Q.6. Sex cells have:
(1) The same number of chromosomes as body cells
(2) Half as many chromosome as body cells
(3) One quarter as many chromosomes as body cells
(4) Twice as many chromosomes as body cells
(5) Three fourth as many chromosomes as body cells
Ans: (2) Half as many chromosome as body cells
Q.7. A trait that only occurs in one gender is called a-
(1) Generic trait
(5) Ectoderm
Ans: (2) Peridium
Q.4. A haploid cell contains:
(1) Damaged chromosomes
(2) Only half the full complement of chromosomes
(3) The usual complement of chromosomes
(4) Twice the full complement of chromosomes
(5) The usual complement plus one chromosomes
Ans: (2) Only half the full complement of chromosomes
Q.5. The backbones of the DNA double helix are made of
(1) Amino acids
(2) Lipids
(3) Sugars and Phosphates
(4) RNA
(5) Lipoproteins
Ans: (3) Sugars and Phosphates
Q.6. Sex cells have:
(1) The same number of chromosomes as body cells
(2) Half as many chromosome as body cells
(3) One quarter as many chromosomes as body cells
(4) Twice as many chromosomes as body cells
(5) Three fourth as many chromosomes as body cells
Ans: (2) Half as many chromosome as body cells
Q.7. A trait that only occurs in one gender is called a-
(1) Generic trait
(2) Respective trait
(3) Sex limited trait
(3) Sex limited trait
(4) Non sexual trait
(5) Gender trait
Ans: (3) Sex limited trait
Q.8. Polyploidy in plants is induced through
(1) Irradiation
(2) Mutagenic chemicals
(3) Ethylene
(4) Colchicum
(5) g-rays
Ans: (4) Colchicum
Q.9. The quickest method of plant breeding is:
(1) Selection
(5) Gender trait
Ans: (3) Sex limited trait
Q.8. Polyploidy in plants is induced through
(1) Irradiation
(2) Mutagenic chemicals
(3) Ethylene
(4) Colchicum
(5) g-rays
Ans: (4) Colchicum
Q.9. The quickest method of plant breeding is:
(1) Selection
(2) Hybridization
(3) Introduction
(3) Introduction
(4) Mutation breeding
(5) Implantation
Ans: (4) Mutation breeding
Q.10. Somatic hybridization is achieved through
(1) Grafting
(2) Consugation
(3) Protoplast fusion
(4) Recombinant DNA technology
(5) Southern Blotting
Ans: (3) Protoplast fusion
(5) Implantation
Ans: (4) Mutation breeding
Q.10. Somatic hybridization is achieved through
(1) Grafting
(2) Consugation
(3) Protoplast fusion
(4) Recombinant DNA technology
(5) Southern Blotting
Ans: (3) Protoplast fusion
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