Genetics and Heredity Test 2024-25

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses, such as AA, Aa, or aa.

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What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, such as Aa.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.

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What are chromosomes?

Back

Chromosomes are structures within cells that contain DNA and carry genetic information from one generation to the next.

Front

What is selective breeding?

Back

Selective breeding is the process of choosing specific animals or plants to reproduce based on desired traits.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to variations in traits.

Front

What is an addition mutation?

Back

An addition mutation occurs when one or more base pairs are added to the DNA sequence.

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What is a deletion mutation?

Back

A deletion mutation occurs when one or more base pairs are removed from the DNA sequence.

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What is a substitution mutation?

Back

A substitution mutation occurs when one base pair in the DNA sequence is replaced by another.

Front

What is the role of alleles?

Back

Alleles are different forms of a gene that determine specific traits in an organism.