Genetics II Review

Front

What is a homozygous dominant genotype?

Back

A homozygous dominant genotype consists of two identical dominant alleles, such as MM.

Front

What is the allele combination for a heterozygous genotype?

Back

A heterozygous genotype consists of one dominant and one recessive allele, such as Aa.

Front

What does the term 'genotype' refer to?

Back

Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in a heterozygous genotype.

Front

What is incomplete dominance?

Back

Incomplete dominance occurs when one allele is not completely dominant over another, resulting in a blended phenotype.

Front

What is codominance?

Back

Codominance occurs when both alleles in a heterozygous genotype are fully expressed, resulting in offspring with a phenotype that shows both traits.

Front

What is a pedigree chart?

Back

A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors.

Front

How many generations can a pedigree chart display?

Back

A pedigree chart can display multiple generations, often up to four or more.

Front

What is the significance of the F1 generation in genetics?

Back

The F1 generation is the first filial generation, resulting from a cross between two parental (P) generations.

Front

What is the purpose of a Punnett square?

Back

A Punnett square is used to predict the genotypes and phenotypes of offspring from a genetic cross.