Genetics and Evolution-Heredity and Variation (NEET Biology): Questions 12 - 19 of 67

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Question number: 12

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

MCQ▾

Question

Mendel proposed which of the following term for hereditary units?

Choices

Choice (4) Response

a.

Factor (Determiner)

b.

Genetic particle

c.

Genome

d.

None of the above

Question number: 13

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

MCQ▾

Question

Mule is an offspring of

Choices

Choice (4) Response

a.

Male and female donkey

b.

Cow and ox

c.

Male horse and female ass

d.

Male ass and mare

Question number: 14

» Genetics and Evolution » Heredity and Variation » Chromosomal Disorders in Humans

MCQ▾

Question

Phenylketonuria is a genetic disorder of

Choices

Choice (4) Response

a.

Autosomal dominant gene

b.

Trisomic condition

c.

Autosomal recessive gene

d.

Monosomic condition

Question number: 15

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

MCQ▾

Question

What would be the number of chromosomes in the ovum (fertilized by a normal sperm) that resulted in the appearance of Klinefelter’s syndrome in the offspring?

Choices

Choice (4) Response

a.

24

b.

22

c.

23

d.

21

Question number: 16

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

MCQ▾

Question

Mongolism syndrome is caused by

Choices

Choice (4) Response

a.

One extra chromosome.

b.

One extra sex chromosome.

c.

One extra chromosome in 21st pair.

d.

One less sex chromosome.

Question number: 17

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

Which of the following Mendel has selected for his experiment?

Choices

Choice (4) Response

a.

Pigeon pea

b.

Moong

c.

Sweet pea

d.

Garden pea

Question number: 18

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

MCQ▾

Question

Gene mutation is caused by

Choices

Choice (4) Response

a.

Change in the sequence of genes in DNA.

b.

Reproduction.

c.

Change in the sequence of nitrogenous base.

d.

Linkage.

Question number: 19

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

MCQ▾

Question

An abnormal male child is born to normal parents. This child shows a short neck, stubby hands, slanting eyes, permanently open mouth with projection upper lip and short stature. This abnormality can be attributed to

Choices

Choice (4) Response

a.

An extra chromosome in the 21st pair of autosomes

b.

An extra X chromosome

c.

Absence of X chromosome leading to a total of 45 chromosomes instead of the normal 46.

d.

An extra Y chromosome

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