UNIT 4 Test Review

Front

What is the genotype for a homozygous dominant individual?

Back

TT

Front

What is the genotype for a homozygous recessive individual?

Back

tt

Front

What is incomplete dominance?

Back

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 traits.

Front

In a Punnett square, what does each box represent?

Back

Each box represents a possible genotype of the offspring from the parental cross.

Front

What shape represents a male in a pedigree chart?

Back

Square

Front

What shape represents a female in a pedigree chart?

Back

Circle

Front

What is the phenotype of a plant with genotype Rr?

Back

Red fruit (since R is dominant over r).

Front

What is the result of crossing a homozygous dominant plant (RR) with a homozygous recessive plant (rr)?

Back

All offspring will have the genotype Rr, which expresses the dominant phenotype.

Front

What is codominance?

Back

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

Front

What is a karyotype?

Back

A karyotype is a visual representation of an individual's chromosomes, used to identify chromosomal abnormalities.