Punnett Squares

Front

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

Back

dominant

Front

T - tall and t = short. In the Punnett square, what belongs in the missing square?

Back

tt

Front

Each one of the boxes on the Punnett square represents what probability of an offspring's genotype?

Back

25%.

Front

Brown eyes are dominant over blue eyes. What is the probability that the offspring will have brown eyes in this cross?

Back

50%.

Front

Which of the following genotypes is homozygous dominant?

Back

AA

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, represented by letters (e.g., TT, Tt, tt).

Front

Define 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).