92- Genetics Review

Front

What is the genotype of a heterozygous individual?

Back

Bb

Front

What are homozygous alleles?

Back

Alleles that are identical for a particular gene (e.g., BB or bb).

Front

What does X^N Y represent in terms of colorblindness?

Back

A male with normal vision.

Front

What does a filled circle represent in a pedigree chart?

Back

An affected female.

Front

What is the probability of offspring inheriting blood type O from parents with genotypes AO and BO?

Back

25%.

Front

Define genotype.

Back

The genetic makeup of an individual, represented by alleles (e.g., BB, Bb, bb).

Front

Define phenotype.

Back

The observable characteristics or traits of an individual, influenced by genotype and environment.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in heterozygous individuals.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from parental crosses.

Front

What does it mean for a trait to be X-linked?

Back

The gene for the trait is located on the X chromosome.