Phenotype vs Genotype

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses (e.g., GG, Gg, gg).

Front

What is a phenotype?

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A phenotype is the observable physical or biochemical characteristics of an organism, determined by both its genotype and environmental factors.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., GG or gg).

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene (e.g., Gg).

Front

What is the difference between dominant and recessive alleles?

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Dominant alleles express their traits even when only one copy is present, while recessive alleles only express their traits when two copies are present.

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What is an example of a homozygous dominant genotype?

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An example of a homozygous dominant genotype is 'RR' for red flower color.

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What is an example of a homozygous recessive genotype?

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An example of a homozygous recessive genotype is 'rr' for blue flower color.

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What is an example of a heterozygous genotype?

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An example of a heterozygous genotype is 'Rr' for a flower that has one red and one blue allele.

Front

If yellow is dominant to blue, what is the genotype for a homozygous yellow flower?

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The genotype for a homozygous yellow flower is 'YY'.

Front

If yellow is dominant to blue, what is the genotype for a heterozygous yellow flower?

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The genotype for a heterozygous yellow flower is 'Yy'.