Genetics and Evolution-Heredity and Variation (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 20 - 26 of 75

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Question number: 20

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

Change of male and female parents during crosses is known as

Choices

Choice (4) Response

a.

Test cross

b.

Back cross

c.

Reciprocal cross

d.

Monohybrid cross

Question number: 21

» Genetics and Evolution » Heredity and Variation » Down's Syndrome, Turner's and Klinefelter's Syndromes

MCQ▾

Question

Number of sex chromosomes is normal in

Choices

Choice (4) Response

a.

Turner’s syndrome

b.

Super female

c.

Down’s syndrome

d.

Klinefelter’s syndrome

Question number: 22

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

What type of gametes will from by genotype Rr Yy?

Choices

Choice (4) Response

a.

RY, Ry, ry, ry

b.

RY, Ry, rY, ry

c.

Ry, Ry, Yy, ry

d.

Rr, RR, Yy, YY

Question number: 23

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

The genotypes of a plant variety were TtHh, Tthh, ttHh, and tthh, where T = tallness and H = hairy stem. Which one of the following crosses would produce progeny giving a phenotypic ratio approximately 1: 1: 1: 1?

Choices

Choice (4) Response

a.

TtHh x ttHh

b.

TtHh x tthh

c.

TtHh x TTHh

d.

TtHh x TtHh

Question number: 24

» Genetics and Evolution » Heredity and Variation » Chromosomes and Genes

MCQ▾

Question

The branch of botany dealing with heredity and variation is called?

Choices

Choice (4) Response

a.

Genetics

b.

Geobotany

c.

Sericulture

d.

Evolution

Question number: 25

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

From single ear of corn, a farmer planted 200 kernels which produced 140 tall and 40 dwarf plants. The genotype of these offsprings are most likely

Choices

Choice (4) Response

a.

TT, Tt and tt

b.

TT and Tt

c.

TT and tts

d.

Tt and tt

Question number: 26

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

In 1990 A. D. three biologists independently discovered Mendel’s principles. They are

Choices

Choice (4) Response

a.

Avery, McLeod and McCarthy.

b.

Sutton, Morgan and Bridges.

c.

De Vries, Correns and Tschermak.

d.

Bateson, Punnet and Bridgess.

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