Genetics Review- Cooper

Front

What is the probability of a blue-eyed baby from two brown-eyed parents (Bb)?

Back

25%.

Front

What must the genotype of individual II-3 be if the pedigree shows an autosomal recessive disorder?

Back

hh.

Front

What did Mendel call the two kinds of traits exhibited by pea plants?

Back

Alleles.

Front

What is the term for an organism with two of the same alleles for a certain trait?

Back

Homozygous.

Front

What is another name for an organism with the same alleles for a trait?

Back

Purebred.

Front

Define genotype.

Back

The genetic makeup of an organism.

Front

Define phenotype.

Back

The observable characteristics of an organism.

Front

What is a heterozygous organism?

Back

An organism with two different alleles for a trait.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even if only one copy is present; recessive alleles require two copies to express their trait.

Front

What is a Punnett square used for?

Back

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