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

Question # 1

International breeding between individuals for certain traits, or combination of traits is called as.

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Variations

Evolution

Natural selection

Artificial selection

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Question # 2

Genes consist of.

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RNA

mRNA

Protein

DNA

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Question # 3

Cytocine always pairs with:

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Guanine

Adenine

Uracil

Thymine

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Question # 4

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

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Question # 5

In a nucleosome, DNA is wrapped around protein named.

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Insulin

Interferon

Histone

Haemoglobin

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Question # 6

Example of discontinuous variation is:

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Blood group

Height in Man

Intelligence

None of these

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Question # 7

Alternatives forms of a gene are called:

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Allele

DNA

Chromosome

Gamete

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Question # 8

How many genotypes are possible for the allele ''A'' and ''a'' ?

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two

three

four

seven

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Question # 9

____________ hydrogen bonds are present between cytosine and guanine:

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Question # 10

The allele which is not expressed is called:

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Dominant

Phenotype

Genotype

Recessive

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Question # 11

In a nucleosome , DNA is wrapped around protein named:

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Insulin

Interferon

Histone

haemoglobin

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Question # 12

How many types of Difference shown by individuals of same species?

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Question # 13

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

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Inheritance

Transcription

Translation

Replication

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