Basic Genetics

Which of the following is a phenotype?

• BB
• dominant
• bb
• Blue eyes

the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• heterozygous
• protein
• chromosome

having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Tags

NGSS.HS-LS3-1

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous genes
• mutated DNA

Tags

NGSS.HS-LS3-1

T = tall and t = short
What is the phenotype for Tt?

• short
• tall
• medium sized
• neither tall or short

Which of the following alleles is homozygous  recessive?

• Tt
• tt
• TT
• t

TT,tt,PP,pp,SS,ss are examples of alleles that are?

• homozygous
• heterozygous
• different
• homologous