Agriculture - Mock Test 178

Question 1771

Transmission of a gene in Bacterio-phase is known as?

A) Transversion B) Transduction C) Inversion D) Fusion

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Question 1772

Transfer of resistance gene to high yielding self-pollinated varieties is achieved by?

A) Hybridisation and pedigree selection B) Recurrent backcrossing and selection C) Hybridisation and bulk selection D) Hybridisation and mass selection

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Question 1773

Tomato fruit is a?

A) Drupe B) Berry C) Siliqua D) Hesperidium

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Question 1774

When two alleles of a gene are identical, the plant is said to be?

A) Recessive B) Dominant C) Heterozygous D) Homozygous

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Question 1775

To produce hybrid seed we need?

A) A male sterile line, restorer, maintainer B) A male fertile line and maintainer C) A maintainer and restorer D) Only male sterile line

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Question 1776

When two genes show independent segregation, a genotype AaBb will produce ______ types of gametes?

A) 4 B) 3 C) 2 D) 1

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Question 1777

When two organisms live together for mutual help to each other are called?

A) Saprophytes B) Symbionts C) Parasites D) Epiphytes

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Question 1778

Thomas Andrew Knight first noted differences among wheat varieties in their resistance to?

A) Smut B) Bunt C) Rust D) Wilt

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Question 1779

Thick and woody perennial climbers, met within forests, twine round tall trees and at their tops produce a canopy of foliage are?

A) Twiners B) Leaf climbers C) Hooke climbers D) Lianes

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Question 1780

There are four stage of development of Genetics upto 20th century. The correct order of their occurrence is?

A) Darwinism, Lamarckism, Mendelism, Weismannism B) Lamarckism, Darwinism, Weismannism, Mendelism C) Lamarckism, Weismannism, Darwinism, Mendelism D) Weismannism, Lamarckism, Darwinism, Mendelism

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