Punnett Squares

Front

What does each box in a Punnett Square represent in terms of genotype probability?

Back

25%

Front

What is the term for a trait that covers up another weaker trait?

Back

Dominant

Front

What is the physical appearance of an organism called?

Back

Phenotype

Front

If a dog gives birth to 5 puppies, what percentage of chromosomes does each puppy inherit from the mother?

Back

50%

Front

In a genetic cross, if purple (P) is dominant over white (p), what is the probability of an offspring being white?

Back

0%

Front

What is the term for the genetic makeup of an organism?

Back

Genotype

Front

What is the purpose of a Punnett Square in genetics?

Back

To predict the probability of offspring genotypes and phenotypes from parental genotypes.

Front

What is the expected phenotypic ratio of a monohybrid cross between two heterozygous parents (Pp x Pp)?

Back

3:1

Front

In a dihybrid cross, what is the expected phenotypic ratio of the offspring?

Back

9:3:3:1

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous has two identical alleles, while heterozygous has two different alleles.