3,820 Questions

Science Questions

All Science MCQs for CTEVT entrance exam.

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ScienceEasy
Biology
Genetics

What does 't' represent in Mendelian genetics for height?

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ScienceEasy
Biology
Genetics

Variation that occurs in body cells and is not inherited is called:

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ScienceEasy
Biology
Genetics

The 23rd pair of chromosomes in humans is called:

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ScienceEasy
Biology
Genetics

Which generation is produced by crossing two pure parents with contrasting traits?

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ScienceEasy
Biology
Genetics

What is the shape of the DNA molecule?

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ScienceEasy
Biology
Genetics

The physical basis of heredity is:

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ScienceEasy
Biology
Genetics

In a cross between pure tall (TT) and pure dwarf (tt) plants, what is the genotype of the F1 generation?

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ScienceMedium
Biology
Genetics

What is the phenotypic ratio of a Mendelian monohybrid cross in the F2 generation?

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ScienceMedium
Biology
Genetics

What is the genotypic ratio of a Mendelian monohybrid cross in the F2 generation?

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ScienceMedium
Biology
Genetics

Which Mendelian law states that the two alleles for a trait separate during gamete formation?

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ScienceMedium
Biology
Genetics

Mendel's Law of Independent Assortment is best demonstrated by a:

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ScienceMedium
Biology
Genetics

What is the phenotypic ratio of a dihybrid cross in the F2 generation?

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ScienceMedium
Biology
Genetics

If a red-flowered plant is crossed with a white-flowered plant and the offspring are all pink, this is an example of:

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ScienceMedium
Biology
Genetics

A cross used to determine whether an organism expressing a dominant trait is homozygous or heterozygous is called a:

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ScienceMedium
Biology
Genetics

Which of the following is an example of a sex-linked recessive disorder?

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ScienceMedium
Biology
Genetics

How many hydrogen bonds form between Guanine (G) and Cytosine (C) in DNA?

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ScienceMedium
Biology
Genetics

What components make up a single nucleotide of DNA?

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ScienceMedium
Biology
Genetics

Which of the following is a reason why Mendel chose pea plants for his experiments?

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ScienceMedium
Biology
Genetics

What is the genotype of a carrier female for color blindness?

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ScienceMedium
Biology
Genetics

In a cross between $Tt$ and $Tt$, what is the probability of obtaining a dwarf plant ($tt$)?

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