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Plant Breeding and Genetics
A species or type of a plant derived from doubling the chromosome of the F1 hybrid of two known species is known as _______?
Hexaploid
Autodiploid
Autopolyploid
Amphidiploid
Author:
rikazzz
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Plant Breeding and Genetics
In lucern, toxic substance is found in _______?
Saponin
Neurotoxin
Coumarin
All the above
Author:
rikazzz
Comment
Plant Breeding and Genetics
The chromosome number of human race is _______?
41
48
44
46
Author:
rikazzz
Comment
Plant Breeding and Genetics
Plastids bring about _______?
Respiration
Secretion
Excretion
Conversion of light energy into chemical energy
Author:
rikazzz
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Plant Breeding and Genetics
Drought is measured in terms of _______?
Photosynthesis
Yield performance
Root length of seedings
All the above
Author:
rikazzz
Comment
Plant Breeding and Genetics
Reciprocal recurrent selection was proposed by _______?
Allard (1955)
Constock et al (1949)
Hays and limner (1950)
Hull (1935)
Author:
rikazzz
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Plant Breeding and Genetics
Mutant allele that has little or no effect on the expression of a tart is known as _______?
Auxotroph
Atavism
Axoneme
Armor
Author:
rikazzz
Comment
Plant Breeding and Genetics
Amount of DNA is the diploid cells _______?
Constant for particular organism
Coustant for all organismes
Varies with the age
None of these
Author:
rikazzz
Comment
Plant Breeding and Genetics
A rearrangement of a group of genes in a chromosome in such a way that their order in the chromosomes is reversed is known as _______?
Conversion
Inversion
Recessive gene
Realignment
Author:
rikazzz
Comment
Plant Breeding and Genetics
The reason why mutations which are harmful do not eliminated from gene pool is that _______?
They are recessive and carried by heterozygous individuals
They have future survival value
Making possible reproduction in all types of environments
Genetic drift occurs because of a small population in to offsprings
Author:
rikazzz
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