Day 8_Semes1_TEK 6F_BR

An organism's genetic makeup, or allele combinations

• Recessive

• Genotype

• Phenotype

• Heterozygous

The physical expression of a genetic trait is called a

• Mutation

• Genotype

• Crossing Over

• Phenotype

The following items are examples of ____.

Items: eye color, hair color, height

• Homozygous alleles

• Genotype

• Heterozygous alleles

• Phenotype

Which of the following genotypes would be considered heterozygous?

• BB

• gg

• Ff

• TT

Which of the following alleles in homozygous recessive?

• Tt

• tt

• TT

• T

G= green

g= yellow

The genotype for a yellow plant is

• GG

• Gg

• gg

• all of the choices result in yellow

What allele combination should go in the missing box?

• AA

• Aa

• aa

• none of these

if B= brown hair and b= blonde hair, what is the probability of brown hair?

• 25%

• 50%

• 0%

• 75%

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

• 0:4

• 2:4

• 1:4

• 4:4

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed? (B= brown eyes and b= blue eyes)

• 0%

• 25%

• 50%

• 75%