Genetics and Inheritance Patterns

Front

What is the phenotype of the offspring when a red radish (RR) is crossed with a purple radish (RW)?

Back

50% red and 50% purple.

Front

What does Mendel's law of segregation state about allele inheritance?

Back

Parents donate one allele for each gene to offspring.

Front

What is the simplest explanation for the inheritance pattern of grey, black, and white chicks from a grey-feathered rooster and a grey-feathered hen?

Back

The trait is incompletely dominant, producing grey when black and white are crossed.

Front

What cross produces offspring in the ratio of 1 red: 2 roan: 1 white in cattle?

Back

Roan (RW) x Roan (RW).

Front

What is the genotype and phenotype of the square marked with 'X' in a Punnett Square if it is Pprr?

Back

Genotype: Pprr; Phenotype: puffy and purple lips.

Front

Define genotype.

Back

The genetic constitution of an individual, represented by alleles.

Front

Define phenotype.

Back

The observable physical or biochemical characteristics of an organism, determined by genotype.

Front

What is codominance in genetics?

Back

A situation where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

What is incomplete dominance?

Back

A genetic situation where one allele does not completely dominate another, resulting in a third phenotype that is a blend of the two.

Front

What is a Punnett Square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.