Genetics and Punnett Squares

Dominant or recessive?
tt

• Dominant 
• Recessive

Tags

NGSS.HS-LS3-1

Dominant or recessive?
Dd

• Dominant
• recessive
• neither
• homozygous

Tags

NGSS.HS-LS3-1

Emily has brown hair. Which is most likely a true statement about Emily?

• Emily’s favorite color is brown.
• Emily has a parent with brown hair.
• Emily’s older brother has brown hair. 

Homozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Tags

NGSS.HS-LS3-1

Aa is

• homozygous (purebred)
• heterozygous (hybrid)

Tags

NGSS.HS-LS3-1

What is a phenotype?

• The expression of a trait; physical appearance.
• refers to the genetic makeup of an individual
• An organism that has the same genes for a trait (ex. TT or tt)
• the passing of traits from parent to offspring

Tags

NGSS.HS-LS3-1

Homozygous or heterozygous?
BB

• Homozygous
• Heterozygous

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

Tags

NGSS.HS-LS3-2

aa always shows up as

• dominant
• recessive

Tags

NGSS.HS-LS3-1

What is the dominant trait?

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2