Complete Dominance

Front

What is complete dominance in genetics?

Back

Complete dominance occurs when one allele completely masks the effect of another allele at the same locus, resulting in a phenotype that is solely determined by the dominant allele.

Front

What is the genotype for a homozygous dominant individual?

Back

The genotype for a homozygous dominant individual is represented as 'AA', where both alleles are the same and dominant.

Front

What is the genotype for a homozygous recessive individual?

Back

The genotype for a homozygous recessive individual is represented as 'aa', where both alleles are the same and recessive.

Front

What does heterozygous mean in terms of genotype?

Back

Heterozygous refers to having two different alleles at a specific locus, represented as 'Aa'.

Front

How do you determine the phenotypic ratio from a Punnett square?

Back

The phenotypic ratio is determined by counting the number of offspring with each phenotype and expressing it in simplest form.

Front

What is a Punnett square used for in genetics?

Back

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

Front

If a trait is dominant, what does that imply about its expression in offspring?

Back

If a trait is dominant, it will be expressed in the phenotype of the offspring even if only one dominant allele is present.

Front

What is the expected phenotypic ratio for a monohybrid cross between two heterozygous parents?

Back

The expected phenotypic ratio for a monohybrid cross between two heterozygous parents (Aa x Aa) is 3:1.

Front

What is the significance of the F1 generation in genetics?

Back

The F1 generation refers to the first filial generation of offspring resulting from a cross between two parental (P) generations.

Front

What does it mean if a trait is recessive?

Back

A recessive trait is one that is only expressed in the phenotype if two recessive alleles are present (e.g., 'aa').