Genetics- Punnett Squares

Front

How many chromosomes are in a normal human body cell?

Back

46

Front

Which pair of alleles is an example of homozygous dominant?

Back

TT

Front

What is the probability of heterozygous offspring in a monohybrid cross?

Back

50%

Front

What is it called when the alleles in a genotype are different?

Back

Heterozygous

Front

What is it called when both alleles in a genotype are the same?

Back

Homozygous

Front

What is a Punnett Square used for?

Back

To predict the genetic outcomes of a cross between two organisms.

Front

Define genotype.

Back

The genetic makeup of an organism.

Front

Define phenotype.

Back

The observable traits of an organism.

Front

What does it mean if an allele is dominant?

Back

It expresses its trait even when only one copy is present.

Front

What does it mean if an allele is recessive?

Back

It only expresses its trait when two copies are present.