Question # 1

In the structure of DNA Adenine of one nucleotide pairs with which of the nitrogenous base opposite nucleotide:

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Guanine

Cytosine

Thymine

Uracil

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

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two

three

four

seven

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

Genes consist of.

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RNA

mRNA

Protein

DNA

In dihybrid cross the genotypic ratio of F2 generation is:

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1 : 1 ; 1 : 1

1 :3 :1 : 1

1 : 2 : 2 : 1

9 : 3 : 3 : 1

mRNA carries sequence of the nucleotides to ribosomes, Ribosomal reads this sequence and joins specific amino acid to form protein, this process is:

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Duplication

Transcription

Translation

Replication

The allele which is not expressed is called:

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Dominant

Phenotype

Genotype

Recessive

Mendel's primary contribution to our understanding of inheritance was:

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The idea that genes are found on chromosomes

Explanation of the patterns of inheritance

The discovery of alleles

Determining that informations contained in DNA are for protein synthesis.

Adenine always pairs with:

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thymine

guanine

cytosine

uracil

The characteristics which appear in an organism are called:

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Genotype

Karyotype

Phenotype

Body type

In variation, the phenotypes shows a complete range of measurements from one extreme to the other is.

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Discontinuous

Continuous

^{Both a and b}

None of these

Genetics is the branch of biology in which we study:

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Functions

Fossils

Inheritance

Evlution

Dominant Alleles are represented by:

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Small letters

Capital letters

Roman numbers

Numerical numbers

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

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