8.8b Genetics Vocabulary Quiz

What is an allele?

• A type of cell

• A variation of a gene

• A protein

• A chromosome

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-3

Codominance is a pattern of inheritance where two dominant alleles are expressed at the same time without ______.

• Blending

• Separating

• Mutating

• Disappearing

A dihybrid cross is a genetic cross between two organisms that are heterozygous for how many different alleles?

• One

• Two

• Three

• Four

Which allele is always expressed in the trait for that gene?

• Recessive

• Dominant

• Incomplete

• Codominant

Genotype refers to an organism's specific ______ combination.

• Protein

• Chromosome

• Allele

• Cell

Heterozygous organisms have how many different alleles for a given genotype?

• One

• Two

• Three

• Four

Homozygous organisms have how many of the same alleles for a given genetic trait?

• One

• Two

• Three

• Four

Incomplete dominance is a pattern of inheritance where neither pair of contrasting alleles is dominant over the other, and a heterozygous organism is ______ in phenotype.

• Intermediate

• Dominant

• Recessive

• Absent

Mendelian inheritance is a pattern of inheritance discovered by whom?

• Charles Darwin

• Gregor Mendel

• Louis Pasteur

• James Watson

A monohybrid cross is a genetic cross of one trait from two different ______ organisms.

• Homozygous

• Heterozygous

• Dominant

• Recessive