Punnett Square - Genetics Flashcard

Front

What is the genotype for a yellow plant if G = green and g = yellow?

Back

gg

Front

In calico cats, what percentage of the offspring will be calico (black and tan spotted) if codominance occurs?

Back

50%

Front

What is the genotype for a homozygous 'B' allele?

Back

IᴮIᴮ

Front

What type of inheritance is determined by multiple genes and can result in a range of traits?

Back

Polygenic traits

Front

What type of inheritance occurs when two alleles blend together?

Back

Incomplete Dominance

Front

Define codominance in genetics.

Back

Codominance is a form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even when only one copy is present, while recessive alleles only express their trait when two copies are present.

Front

What is a Punnett Square used for in genetics?

Back

A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What does it mean for a trait to be polygenic?

Back

A polygenic trait is one that is influenced by multiple genes, leading to a continuous range of phenotypes.

Front

What is the expected phenotypic ratio for a monohybrid cross?

Back

The expected phenotypic ratio for a monohybrid cross is typically 3:1.