Question # 1

Cytosine always makes pair with.

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Guanine

Hyydrogen

Adenine

thymine

Outside back bone of double helix is made up:

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Sugar

Phosphate

Sugar Phosphate

None of these

The Allele which is not expressed is called:

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Dominant

Recessive

Homozygous

Hetrozygous

How many pairs of homologous chromosomes are present in human body cells.

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22

23

24

25

Among following which is favourable variation in mouse?

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Light coloured skin

Medium coloured skin

Dark coloured skin

All of these

Genes are located on:

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Chromosomes

proteins

nucleotide

DNA

The allele which is not expressed is called:

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Dominant

Phenotype

Genotype

Recessive

Copies of chromatids of chromosomes are made through the process called.

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Inheritance

Transcription

Translation

Replication

No. of hydrogen bonds between Adenine and thymine is:

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2

3

4

5

The process of formation of protein is:

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Translation

Duplication

Mutation

Replication

It is the process by which the better genetic variations become more common in successive generations of population:

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Variation

Artificial selection

Selective breeding

Natural selective

In a nucleosome, DNA is wrapped around protein named.

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Insulin

Interferon

Histone

Haemoglobin

The alternate forms of a gene are called:

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traits

companion genes

alleles

homologous genes

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Biology 10th Class English Medium Chapter 15 Online Test MCQs With Answers

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