Genetics Test Warm Up

B = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.

• they have same phenotype and genotype
• they have different genotypes and phenotypes
• they have same phenotype but different genotypes
• they have same genotype but different phenotypes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is homozygous dominant?

• Yy
• Y
• yy
• YY

What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?

• 100% Tt
• 50% Tt, 50% tt
• 75%Tt, 25%tt
• 25%TT, 50%Tt, 25%tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Who is considered the "father" of modern genetics?

• Einstein

• Mendel

• Disney

• Washington

We have the very distinct breeds of dogs today because of ...

• Genetic manipulation

• Selective Breeding

• CRISPR

• Natural Selection

What type of "square" helps us solve genetic problems?

• carpenter square
• Mendel square
• Punnett square
• genetic square

Tags

NGSS.HS-LS3-3

Round shape (smooth skin) is dominant over wrinkled skin in peas.

Use a Punnett Square to determine the genotypic ratios of the offspring by crossing a homozygous recessive male pea plant with a heterozygous female pea plant.

Use the letters "R" and "r" to represent the alleles.

• 100% RR

• 25% RR, 50% Rr, 25% rr

• 100% rr

• 50% Rr, 50% rr

Round shape (smooth skin) is dominant over wrinkled skin in peas.

Use a Punnett Square to determine the offspring probabilities by crossing a homozygous recessive male pea plant with a heterozygous female pea plant.

Use the letters "R" and "r" to represent the alleles.

• 0% round and 100% wrinkled

• 25% round and 75% wrinkled

• 50% round and round 50% wrinkled

• 75% round and 26% wrinkled