3B Genetics and Punnett Squares

PHENOTYPE is

• the genetic make-up of an organism

• the physical trait of an organism

• nucleic acid

• Aa

Tags

NGSS.HS-LS3-1

What is a GENOTYPE?

• the genetic make-up of an organism

• the physical trait of an organism

• mitosis

• meiosis

Tags

NGSS.HS-LS3-1

Which of the following represents alleles for the homozygous dominant genotype?

• Aa

• aa

• AA

Tags

NGSS.HS-LS3-1

Which of the following represents alleles for the homozygous recessive genotype?

• Aa

• aa

• AA

Tags

NGSS.HS-LS3-1

Which of the following represents alleles for the heterozygous genotype?

• Aa

• aa

• AA

Tags

NGSS.HS-LS3-1

If A = red fur and a = white fur, what color fur would Aa be? (Assume Mendelian inheritance)

• red

• white

• purple

• blue

Tags

NGSS.HS-LS3-1

If A = red fur and a = white fur, what color fur would AA be? (Assume Mendelian inheritance)

• red

• white

• purple

• blue

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If A = red fur and a = white fur, what color fur would aa be? (Assume Mendelian inheritance)

• red

• white

• purple

• blue

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If A = red fur and a = white fur, what are the PHENOTYPIC ratios of the offspring based on the Punnett Square?

• 25% heterozygous

• 50% purple

• 75% red fur and 25% white fur

• 25% homozygous recessive, 50% heterozygous, 25% homozygous dominant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A tall plant (Tt) is crossed with a short plant (tt). What is the phenotype of the offspring?

• 75% tall; 25% short
• 25% tall; 75% short
• 50% tall; 50% short
• 100% tall

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3