Genetics- Punnett Squares

Front

In a Punnett square, a lower case letter stands for a ____________ allele.

Back

recessive

Front

Bb is a ______.

Back

genotype

Front

What allele combination should go in the missing box?

Back

Aa

Front

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

Back

Heterozygous

Front

What are physical characteristics of an organism?

Back

Traits

Front

What is a Punnett square used for?

Back

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

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does phenotype refer to?

Back

The observable physical characteristics of an organism.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the physical expression.

Front

What is a dominant allele?

Back

An allele that expresses its trait even in the presence of a recessive allele.