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

Question # 1

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

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Nucleosomes

Ribosomes

Lysosomes

mRNA

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Question # 2

Specific proteins have specific number and sequence of:

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Enzymes

Amino acids

Locus

Allele

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Question # 3

Among following, which is source of variations?

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Mutation

Crossing over

Gene flow

All of these

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Question # 4

Ribisome reads the sequence of mRNA nucleotides and joins specific amino acids to form protein. This step is known as:

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Combination

Replication

Transcription

Translation

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Question # 5

Which is favourable variation in moths after industrial revolution?

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Light colour

Medium colour

Dark colour

None of these

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Question # 6

The points of attachment of genes on chromosomes are called:

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Transcription

Translation

Loci

Phenotype

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Question # 7

It is change in characteristics of a population or species of organisms over the course of generations:

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Replication

Transcription

Evolution

Translation

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Question # 8

Transmission of characteristics from parents to offsprings is called as:

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Replication

Inheritance

co-dominance

Mutation

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Question # 9

Genes consist of:

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DNA

RNA

mRNA

Protein

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Question # 10

The position of gene on chromosome is known as:

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Locus

Allele

Genotype

Genome

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Question # 11

The organisms expressed physical trait such as seed colour or pod shape is called:

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Genotype

Phenotype

Karyotype

Bodytype

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Question # 12

The Allele which is not expressed is called:

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Dominant

Recessive

Homozygous

Hetrozygous

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Question # 13

These are unit of inheritance.

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Genes

Alleles

Phenotype

Genotype

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