3,820 Questions

Science Questions

All Science MCQs for CTEVT entrance exam.

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Biology
Genetics

Which chromosome is smaller in humans?

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Biology
Genetics

If a dwarf plant is treated with gibberellins and it grows tall, what will be the height of its offspring when self-pollinated?

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ScienceHard
Biology
Genetics

In a dihybrid cross ($RRYY \times rryy$), what is the probability of getting an $RrYy$ genotype in the F2 generation?

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ScienceHard
Biology
Genetics

Which syndrome is caused by the presence of an extra 21st chromosome (Trisomy 21)?

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ScienceHard
Biology
Genetics

The sequence of bases on one DNA strand is ATGC. What is the complementary sequence on the other strand?

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ScienceHard
Biology
Genetics

What is the chromosomal constitution of a person with Turner Syndrome?

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ScienceHard
Biology
Genetics

A person with Klinefelter Syndrome has the following sex chromosomes:

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ScienceHard
Biology
Genetics

How many different types of gametes can be produced by an organism with the genotype $AaBb$?

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ScienceHard
Biology
Genetics

Which enzyme is responsible for unwinding the DNA double helix during replication?

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ScienceHard
Biology
Genetics

In DNA replication, the small fragments of DNA formed on the lagging strand are called:

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ScienceHard
Biology
Genetics

The process of converting the information in DNA into RNA is called:

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ScienceHard
Biology
Genetics

What is the ratio of offspring in a test cross of a heterozygous tall plant?

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ScienceHard
Biology
Genetics

Which of these is a triplet code on mRNA that specifies an amino acid?

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ScienceHard
Biology
Genetics

The term 'linkage' refers to genes that:

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ScienceHard
Biology
Genetics

What is the probability of a woman who is a carrier for color blindness and a normal man having a color-blind daughter?

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ScienceHard
Biology
Genetics

Which of the following describes a frame-shift mutation?

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ScienceHard
Biology
Genetics

How many nitrogenous bases make up a single codon?

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Biology
Genetics

Which type of mutation occurs in the sex cells and can be passed to the next generation?

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ScienceHard
Biology
Genetics

The discovery of the 'Transforming Principle' in bacteria was done by:

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ScienceHard
Biology
Genetics

Which base is complementary to Cytosine (C)?

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