Genetics Review

Front

What is the genotype of a blue-eyed child in humans?

Back

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Front

What complex molecule carries genetic information in an organism?

Back

DNA

Front

How many alleles does a baby guinea pig inherit from their mother?

Back

1

Front

What does heterozygous mean?

Back

An organism that has different alleles (genes) for a trait.

Front

What is the probability of offspring having brown eyes if brown is dominant over blue?

Back

50%.

Front

What is a dominant trait?

Back

A trait that is expressed in the phenotype even when only one allele is present.

Front

What is a recessive trait?

Back

A trait that is only expressed in the phenotype when two recessive alleles are present.

Front

Define allele.

Back

An alternative form of a gene.

Front

What is the difference between genotype and phenotype?

Back

Genotype is the genetic makeup of an organism, while phenotype is the observable traits.

Front

What does homozygous mean?

Back

An organism that has the same alleles (genes) for a trait.