2024 Genetics

Front

What is heredity?

Back

Heredity is the passing on of traits from parents to offspring through genes.

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What is incomplete dominance?

Back

Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two.

Front

What is the genotype for a pea plant homozygous for round seeds (R) and heterozygous for yellow seeds?

Back

The genotype is RRYy.

Front

What is the genotype for a heterozygous dominant offspring of green peas (G) and yellow peas (g)?

Back

The genotype is Gg.

Front

What percentage of offspring will have pink flowers when a red flowered plant (RR) breeds with a white flowered plant (WW) under incomplete dominance?

Back

100% of the offspring will have pink (RW) flowers.

Front

Define genotype.

Back

Genotype is the genetic constitution of an individual, specifically the alleles present for a particular gene.

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Define phenotype.

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

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What is codominance?

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Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits.

Front

What is an allele?

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An allele is a variant form of a gene that can produce different traits.

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What does homozygous mean?

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Homozygous refers to having two identical alleles for a particular gene.