Agriculture - Mock Test 194

Question 1931

Sterility incompatibility of distant crosses can e overcome to produce hybrids by?

A) Pollen culture B) Anther culture C) Explants culture D) Embryo culture

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Question 1932

Sterility is most pronounced in the F1 generation following?

A) Intervarietal hybridization B) Intravarietal hybridization C) Intraspecific hybridization D) Interspecific hybridization

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Question 1933

Stems often bear?

A) Unicellular hairs B) Multicellular hairs C) Both a & b D) None of above

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Question 1934

Sporogenesis means?

A) Formation of zygote B) Formation of embryo C) Germination of seed D) Development and formation of spores

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Question 1935

Spikelets are characteristic of the family?

A) Umbelliferae B) Gramineae C) Malvaceae D) Leguminoceae

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Question 1936

Specific combining ability of the parents should be high in order to develop?

A) Hybrids B) Composites C) Varieties D) Synthetics

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Question 1937

Single gene affecting more than one character is?

A) Polymorphism B) Pleiotropy C) Phenocopy D) Complete penetrance

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Question 1938

Sex in Drosophila is governed by the following mechanism?

A) XY methods B) OX method C) ZZ method D) X autosomes ratio

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Question 1939

Selfing of a plant increases?

A) Heterozygosity B) Homozygosity C) Homogenecity D) Heterogenecity

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Question 1940

Seeds of pea, gram and beans are?

A) Albuminous or non-endospermic B) Ex-albuminous C) Both 1⃣ & 2⃣ D) None of the above

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