Quizziz - Genetics Basics

What is an allele?

• A slippery, long animal that lives in the water

• a version of a trait

• a kind of cell that has DNA

• If I told you the answer, how are you ever going to learn?

The offspring of many generations that have the SAME traits.

• Purebred

• Hybrid

• Dominant allele

• Recessive allele

How many alleles (letters) does a child get from EACH parent for each trait?

• 1

• 2

• 3

• 4

The law that says alternate forms of a gene separate during the formation of gametes; they do not mix to form a new trait

• Law of segregation

• law of independent assortment

• law of inertia

• law of acceleration

A genotype with two dominant alleles is known as:

• Homozygous dominant

• homozygous recessive

• heterozygous

When might a dominant trait appear?

• When an organism has a dominant and a recessive allele

• In the absence of recessive alleles

• When an organism is heterozygous

• All of these

What is the dominant trait?

• yellow pea seeds
• green pea seeds
• there is no dominant seed
• Jolly green giant

The term used to describe a purebred organism when two identical alleles are present.

• heterozygous

• homozygous

• recessive

• dominant

Which is the correct phenotype for this organism?

• BB
• blue
• green
• bb

A plant's alleles for white flowers are "pp". What can you say for certain about the plant's parents?

• both parents were pp

• both parents were Pp

• both parents were white

• both parents contributed a recessive allele