2021 Genetics & Punnett Squares

Front

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Back

dominant

Front

Aa, DD, bB, yy are all examples of __________.

Back

genotypes

Front

A green pea plant (GG) is being crossed with a green pea plant (Gg). What is the phenotype?

Back

100% green

Front

Which genotype is homozygous dominant?

Back

AA

Front

aa always shows up as __________.

Back

recessive

Front

What is the definition of a genotype?

Back

The genetic makeup of an organism, represented by letters (e.g., AA, Aa, aa).

Front

What is the definition of a phenotype?

Back

The physical appearance or observable traits of an organism.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene (e.g., AA or aa).

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene (e.g., Aa).

Front

What is a Punnett square used for?

Back

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