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

Question # 1

Genes consist of:

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DNA

RNA

mRNA

Protein

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Question # 2

The relationship between the alleles IA and IB of the blood group is:

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complete dominance

incomplete dominance

recessiveness

co-dominance

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Question # 3

Genetics is branch of biology in which we stydy.

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Functions

Fossils

Inheritance

Evolution

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Question # 4

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

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two

three

four

seven

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Question # 5

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 # 6

James Watson and Francis Crick proposed the structure of DNA in.

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1953

1963

1933

1922

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Question # 7

Variatations show distinct phenotypes and phenotypes of such variations cannot be measured by:

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Discontinuous variations

Continuous variations

Both a and b

None of these

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Question # 8

It is a genetic material:

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DNA

RNA

tRNA

rRNA

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Question # 9

Alternative forms of a gene are called.

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Allele

DNA

Chromosome

Gamete

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Question # 10

Genes consist of.

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RNA

mRNA

Protein

DNA

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Question # 11

Variation selected for their transmission to next generation are:

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Favourable

Continuous

Discontinuous

None of these

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Question # 12

It is a situation where two different alleles of gene pair express themselves completely, instead of showing a dominant recessive relationship is called.

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Incomplete dominance.

Co-dominatice

Complete dominatnce

None of these

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Question # 13

In________ James Watson and Francis Crick proposed the structure for DNA.

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1951

1953

1955

1957

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