Genetics : Study guide

Front

Who is considered the 'father' of modern genetics?

Back

Mendel is known as the 'father' of modern genetics for his foundational work on inheritance patterns in pea plants.

Front

This is an example of ___________?

Back

Incomplete dominance is a genetic situation where one allele does not completely dominate another, resulting in a new phenotype.

Front

This type of inheritance pattern shows BOTH traits in possible offspring.

Back

Co-dominance is a genetic pattern where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

G = green, g = yellow. The genotype for a yellow plant is...

Back

The genotype for a yellow plant is gg, which is homozygous recessive.

Front

Which of the following alleles is homozygous (purebred) recessive?

Back

The homozygous recessive allele is tt.

Front

What is the definition of a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What is the definition of a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in heterozygous conditions, while recessive alleles only express their traits when homozygous.

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic situation where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

Front

What is co-dominance?

Back

Co-dominance occurs when both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits.