Genetics and Evolution-Heredity and Variation (NEET Biology): Questions 44 - 48 of 74

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Question number: 44

» Genetics and Evolution » Heredity and Variation » Chromosome Theory of Inheritance

MCQ▾

Question

Cytoplasmic male sterility in maize is manifestation of interaction between

Choices

Choice (4) Response

a.

Mitochondrial and nuclear genes.

b.

Chloroplast and nuclear genes.

c.

Cytoplasmic factors and male sterile genes.

d.

Chloroplast and mitochondrial genes.

Question number: 45

» Genetics and Evolution » Heredity and Variation » Incomplete Dominance

MCQ▾

Question

The term ‘allelomorphic’ implies

Choices

Choice (4) Response

a.

Sex linked characters.

b.

A pair of non-contrasting characters.

c.

A pair of contrasting characters.

d.

Any two characters.

Question number: 46

» Genetics and Evolution » Heredity and Variation » Sex Determination-in Humans, Birds, Honey Bee

MCQ▾

Question

The theory where ratio between the number of X- chromosomes and number of complete sets of autosomes will determine the sex is known as

Choices

Choice (4) Response

a.

Environment sex determination theory.

b.

Hormone balance theory of sex determination.

c.

Genic balance theory of sex determination.

d.

Chromosome theory of sex determination.

Question number: 47

» Genetics and Evolution » Heredity and Variation » Sex Determination-in Humans, Birds, Honey Bee

MCQ▾

Question

Sex determination in Drosophila melanogaster is based on

Choices

Choice (4) Response

a.

Pseudoalleles.

b.

X-Y chromosome mechanism.

c.

Genetic balance between the X-chromosome and autosomes.

d.

Chromosome – environment interaction.

Question number: 48

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

MCQ▾

Question

Barr bodies (seen in saliva test in Olympic games) are found in human and are associated with

Choices

Choice (4) Response

a.

Female autosome

b.

Male sex chromosome

c.

Female sex chromosome

d.

Male autosome

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