ON LEVEL Introduction Genetics

Front

What is the dominant trait in a Punnett square for pea seeds?

Back

Yellow pea seeds are the dominant trait.

Front

What is the genotype of a homozygous dominant tomato plant crossed with a yellow fruit tomato plant?

Back

RR x rr

Front

If two brown-eyed parents (Bb) have a baby, what is the chance the baby will have blue eyes?

Back

25% chance of having blue eyes.

Front

What are the possible genotypes for a cross that results in TT = 25%, Tt = 50%, tt = 25%?

Back

The genotypes are TT, Tt, and tt.

Front

What is another word for homozygous?

Back

Purebred.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Front

What is a genotype?

Back

The genetic makeup of an organism.

Front

What is a phenotype?

Back

The physical appearance or observable traits of an organism.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.