Question # 1

DNA wraps around histone protein and forms-rounded structures called as

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Nucleosomes

Ribosomes

Lysosomes

mRNA

Chromosomes carry units of inheritance called as:

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Chromatin

DNA

Genes

None of these

Adenine always pairs with:

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thymine

guanine

cytosine

uracil

Genes consist of.

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RNA

mRNA

Protein

DNA

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

Formation of messenger RNA from DNA is called.

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Translocation

Transcripton

Tranduction

Translation

It is genetic material.

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DNA

RNA

IRNA

rRNA

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

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1951

1953

1955

1957

Pink flowered four o clock plant is an example of:

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Incomplete dominance

Co-dominance

Complete dominance

None of these

Transmission of character (traits) from parent offspring is called:

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Inheritance

Mutation

Regeneration

Reproduction

Variation selected for their transmission to next generation are:

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Favourable

Continuous

Discontinuous

None of these

Adenine always pairs with:

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Guanine

Cytosine

Uracil

thymine

Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According To Darwin, the offspring that are most likely to survive are those that.

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Are born first and grow fastest

Are largest and most aggressive

Have no natural predators

Are best adapted to the environment.

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

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