Genetics and Evolution (NEET Biology): Questions 48 - 53 of 165

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Question number: 48

» Genetics and Evolution » Heredity and Variation » Co-Dominance

MCQ▾

Question

In sweet pea plants the presence of dominant C and P genes is essential for development of purple colour. The ratio of plants producing flowers of different colours in the progeny of the cross Cc Pp x Cc Pp will be

Choices

Choice (4) Response

a.

9 purple and 7 white colored flowers.

b.

2 purple and 6 white colored flowers.

c.

2 white and 6 purple colored flowers.

d.

3 white and 5 purple colored flowers.

Question number: 49

» Genetics and Evolution » Molecular Basis of Inheritance » Gene Expression and Regulation

MCQ▾

Question

The regulatory genes are located

Choices

Choice (4) Response

a.

Along with the structural genes.

b.

At the end of structural genes.

c.

In the middle of structural genes.

d.

In between operator and the structural genes

Question number: 50

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

Which of the statement is correct?

Choices

Choice (4) Response

a.

Each test cross is a back cross.

b.

Test cross and back cross tests have the same meaning.

c.

Each back cross is a test cross.

d.

Reappearence of similar characters in a test cross is called a back cross.

Question number: 51

» Genetics and Evolution » Molecular Basis of Inheritance » DNA as Genetic Material

MCQ▾

Question

Which form of DNA is most heterogeneous?

Choices

Choice (4) Response

a.

mRNA

b.

hnRNA

c.

tRNA

d.

rRNA

Question number: 52

» Genetics and Evolution » Molecular Basis of Inheritance » DNA as Genetic Material

MCQ▾

Question

Which one of the following is called polynucleotide joining enzyme?

Choices

Choice (4) Response

a.

Ligase

b.

Polymerase-I

c.

Polymerase-II

d.

Ribonuclease

Question number: 53

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

MCQ▾

Question

A self-fertilizing trihybrid plant forms

Choices

Choice (4) Response

a.

8 different gametes and 16 different zygotes.

b.

4 different gametes and 16 different zygotes.

c.

8 different gametes and 32 different zygotes.

d.

8 different gametes and 64 different zygotes.

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