Punnett Square Quizizz

MONOHYBRID CROSS: In humans, brown eyes are generally dominant over blue eyes. Find the phenotypic and genotypic ratios of a cross between two heterozygous brown-eyed people. Use B and b to represent your alleles. Write out the punnett square on your paper.

• Genotype Ratio: 1:2:1

  Phenotype Ratio: 3:1

• Genotype Ratio: 1:2:1

  Phenotype Ratio: 1:1

• Genotype Ratio: 1:1

  Phenotype Ratio: 3:1

• Genotype Ratio: 1:1

  Phenotype Ratio: 1:2:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

MONOHYBRID CROSS: In pea plants, purple flowers are dominant to white flowers. A white flowered plant is crossed with a plant that is heterozygous for the trait. What percentage of the offspring will have purple flowers? Use P and p to represent your alleles. Write out the punnett square on your paper.

• 50% purple

• 25% purple

• 0% purple

• 75% purple

Tags

NGSS.MS-LS4-4

DIHYBRID CROSS Part 1: In tomatoes, yellow fruit and short vines are recessive traits. Red fruit and tall vines are dominant. Cross a homozygous dominant red and homozygous dominant tall plant with a heterozygous red and short plant. Use the letters R and r for fruit color, and T and t for height. What are the GENOTYPES of the parents? Write them on your paper.

• RRTT x rrtt

• RrTt x Rrtt

• RrTt x RrTt

• RRTT x Rrtt

DIHYBRID CROSS Part 2: In tomatoes, yellow fruit and short vines are recessive traits. Red fruit and tall vines are dominant. Cross a homozygous dominant red and homozygous dominant tall plant with a heterozygous red and short plant. Use the letters R and r for fruit color, and T and t for height. What are the allele COMBINATIONS for your punnett square? Write them on your paper and complete your punnett square.

• rt, rt, rt, rt &

  RT, RT, RT, RT

• rt, rt, RT, RT &

  rt, rt, rt, rt

• RT, RT, RT, RT & Rt, Rt, rt, rt

• RT, RT, RT, RT & RT, RT, RT, RT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

DIHYBRID CROSS Part 3: In tomatoes, yellow fruit and short vines are recessive traits. Red fruit and tall vines are dominant. Cross a homozygous dominant red and homozygous dominant tall plant with a heterozygous red and short plant. Use the letters R and r for fruit color, and T and t for height. What is the phenotype ratio? Use the punnett square from the previous question.

• 1:0 (100% red and tall)

• 1:1 (50% red and tall: 50% yellow and short)

• 3:1 (75% red and tall: 25% yellow and short)

CODOMINANCE Part 1: Adelaide and Emma Rose created two brand new breeds of flowers: one lime green (GG) and one bright orange (OO). Green is codominant with orange. If they cross a lime green flower with a bright orange flower, what percentage should be both green AND orange? Write out a punnett square on your paper.

• 0%

• 25%

• 50%

• 100%

CODOMINANCE Part 2: Adelaide and Emma Rose created two brand new breeds of flowers: one lime green (GG) and one bright orange (OO). Green is codominant with orange. If they cross a lime green flower with a bright orange flower, what percentage should be only green? Use the punnett square from the previous question.

• 0%

• 25%

• 50%

• 100%

INCOMPLETE DOMINANCE Part 1: Light brown dogs are (BB')- a combination of dark brown (B) and white (B'). Breed a light brown dog (BB') with another light brown dog (BB'). Write out the punnett square on your paper. What percentage of the puppy offspring will be light brown?

• 0%

• 25%

• 50%

• 100%

INCOMPLETE DOMINANCE Part 2: Light brown dogs are (BB')- a combination of dark brown (B) and white (B'). Breed a light brown dog (BB') with another light brown dog (BB'). Use the punnett square from the previous question. What percentage of the puppy offspring will be white?

• 0%

• 25%

• 50%

• 100%

INCOMPLETE DOMINANCE Part 3: Light brown dogs are (BB')- a combination of dark brown (B) and white (B'). Breed a light brown dog (BB') with another light brown dog (BB'). Use the punnett square from the previous question. What percentage of the puppy offspring will be brown?

• 0%

• 25%

• 50%

• 100%