When the ovule is bent like a horseshoe, is known as
A. Anatropous
B. Amphilotropous
C. Ortho-tropous
D. Camplylotropous
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The ratio of economic yield to the biological yield is
A. Leaf area ratio
B. Harvest index
C. Total harvest
D. None of these
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The outbreeding individuals suffer from inbreeding depression when subjected to close mating. In which of the following types of mating, the inbreeding depression will be cute
A. Genetic assortative mating
B. Phenotypic assortative mating
C. Genetic disassortative
D. Phenotypic disassortative
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The situation when dominant and recessive alleles are expressed itself together is known as
A. Dominance
B. Codominance
C. Pseudo dominance
D. Over dominance
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The cotyledons in gymnosperms are called
A. Mega-gametophyte
B. Integuments
C. Embryo
D. Endosperm
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Translation means transfer of Genetic information from
A. DNA to RNA
B. RNA to DNA
C. mRNA to amino acid sequence
D. Nucleus to cytosol
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The process in which chromosomes exchange materials through the breakage and reunion of their DNA molecule is known as
A. Synopsis
B. Crossing over
C. Cross protection
D. Cytokinesis
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Polytene chromosomes are formed due to
A. Duplication
B. Divergence
C. Endoreduplication
D. Reduplication
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Self incompatibility arises due to
A. Insufficient pollen
B. Self pollination takes place
C. Pollen does not germinate on ovulre
D. All of the above
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Highest uniformity is present in
A. Three way cross
B. Multiple cross
C. Single cross
D. None of these
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In wheat, production of foundation seed needs an isolation distance of
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Nullisomic condition is represented by
A. 2n + 1
B. 2n + 1 - 1
C. 2n - 2
D. 2n + 2
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Dockage means
A. Viability of seeds
B. Impurity percentage of seed lot
C. Germination percentage
D. Vigour of seeds
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An individual having both male and female reproductive organs is known as
A. Dioecious
B. Hermaphrodite
C. Unisexual
D. Bisexual
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Assumptions of Hardy-Weinberg law are
A. Organisms are diploid
B. Mating is random
C. Population size is infinite
D. All of the above
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Who proposed Adventitious embryony?
A. Altman
B. Weishman
C. Strassburger
D. Galton
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In flowering plants who discovered the fertilization?
A. Krebs
B. Strasburger
C. Darwin
D. Nawaschin
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Oxysomes occurs in
A. Plastids
B. Golgi bodies
C. Nucleus
D. Mitochondria
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The term recurrent selection was coined by
A. Robinson
B. East (1908)
C. Shull (1908)
D. Hull (1945)
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Inhibitors to mRNA synthesis (Transcription) are
A. Actinomycin-D
B. Rifampicin
C. 5-Bromouracil
D. All of the above
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