Genetics

Which of the following alleles is homozygous (purebred) recessive?

• Tt
• tt
• TT
• t

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous genes
• mutated DNA

Tags

NGSS.HS-LS3-2

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

Who is considered the "father of genetics"?

• Gregor Mendel
• Reginald Punnett
• James Watson
• Justin Bieber

Tags

NGSS.HS-LS3-1

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

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

Tags

NGSS.HS-LS3-1

How many alleles (letters) do each person carry for a trait?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

Which of the following is homozygous dominant?

• Yy
• Y
• yy
• YY

In a Punnett square each box represents a(n)....

• offspring
• parent
• gene
• trait

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

The genetic characteristics of recessive genes

• tend to mask the characteristics of dominant genes.
• are always expressed in the phenotype.
• are usually codominant.
• tend to be masked by the characteristics of dominant genes.