Genetics Test

Who studied different characteristics of pea plants by cross-pollinating plants?

• Gregor Mendel

• Albert Punnett

• Sir Isaac Newton

• David Kuster

An individuals physical appearance, such as hair color, is an individual's ____________

• Phenotype

• Genotype

• DNA

• Codominance

Having two identical alleles (AA or aa) is called __________

• homozygous

• heterozygous

• mutation

• codominance

Genes are just segments of ______________

• DNA

• RNA

• Protein

• Carbohydrates

A physical appearance is

• genotype

• heterozygous

• phenotype

• codominance

The genetic make up of an individual

• Phenotype

• Genotype

What does a Punnett Square determine?

• all of Mendel's discoveries about genetic crosses

• all the outcomes of a genetic cross

• only the recessive allele combinations

• only the dominant allele combinations

What does RR mean

• Homozygous recessive

• Homozygous dominant

• Heterozygous

Scientists call an organism with two different alleles for a trait

• factor

• purebred

• trait

• heterozygous

What is the probability of producing a tall pea plant from a cross between two HETEROZYGOUS tall pea plants?

• 25%

• 50%

• 75%

• 100%