Punnett Squares Review

Front

What is a Punnett Square?

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 homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, such as Aa.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses (e.g., AA, Aa, aa).

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is the probability of getting a white fur offspring if B = brown fur and b = white fur?

Back

50%.

Front

What is the genotype for yellow seeds in pea plants?

Back

AA or Aa.

Front

Which genotype is homozygous dominant: A, Aa, AA, or aa?

Back

AA.

Front

If one brother has genotype BB and the other has Bb, what can be said about their phenotypes?

Back

They have the same phenotype but different genotypes.

Front

What are genotypes represented by?

Back

Genotypes are represented by combinations of alleles, such as Aa, DD, bB, or yy.