Biology- Genetics

Front

What is a gene?

Back

A region of DNA that controls a trait.

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What is an allele?

Back

A variant form of a gene that can produce different traits.

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What is a chromosome?

Back

A structure made of DNA and proteins that contains genetic information.

Front

What is a nucleotide?

Back

The basic building block of DNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

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What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

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What is a genotype?

Back

The genetic constitution of an individual, representing the alleles inherited from parents.

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What is a double helix?

Back

The structure of DNA, consisting of two strands twisted around each other.

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What is a bottleneck in biodiversity?

Back

A situation where a population's size is significantly reduced, leading to a loss of genetic diversity.

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What is genetic diversity?

Back

The total number of genetic characteristics in the genetic makeup of a species.

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What is a mutation?

Back

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