Genetics and Evolution-Heredity and Variation (NEET Biology): Questions 32 - 37 of 67

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Question number: 32

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

The alleles are

Choices

Choice (4) Response
a.

A pair of genes governing a specific character such as tallness or dwarfness.

b.

Genes governing eye characters.

c.

Multiple forms of genes.

d.

Genes present in allosomes.

Question number: 33

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

MCQ▾

Question

Edward syndrome is on account of ……. .

Choices

Choice (4) Response
a.

45 chromosomes instead of 46.

b.

Presence of three pair of sex chromosomes.

c.

Presence of three chromosomes on 18th pair of autosome.

d.

Presence of three chromosomes on 21st pair of autosome.

Question number: 34

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

A farmer crossed a walnut combed chicken with a single combed one and obtained all walnut combed chickens in F1. The genotype of the parents was

Choices

Choice (4) Response
a.

RR pp x rr PP

b.

RR pp x rr pp

c.

RR Pp x rr pp

d.

Rr Pp x rr pp

Question number: 35

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

Mendel’s law of segregation is applicable to

Choices

Choice (4) Response
a.

Monohybrid cross only.

b.

Dihybrid cross only.

c.

dihybrid and monohybrid cross

d.

Dihybrid but not monohybrid.

Question number: 36

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

When heterozygous tall plants are self-pollinated than tall and dwarf plants are obtained, this is an explanation to

Choices

Choice (4) Response
a.

Segregation of law.

b.

Law of purity of gamete.

c.

Division in scores.

d.

Independent assortment.

Question number: 37

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

MCQ▾

Question

Why some mutations which are harmful do not get eliminated from the gene pool?

Choices

Choice (4) Response
a.

Genetic drift occurs because of a small population area.

b.

They are dominant and show up more frequently.

c.

They are recessive and carried by heterozygous individuals.

d.

They have future survival value.

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