punnett squares

What is the probability of heterozygous offspring?

• 25%
• 50%
• 0%
• 100%

Tags

NGSS.HS-LS3-3

Two heterozygous parents produce offspring. What is the probability of the HOMOZYGOUS DOMINANT GENOTYPE appearing in the offspring generation?

• 75%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-3

Stuart Snail is heterozygous for tall eyeballs.  Sally Snail has tall eyeballs but does carry the recessive allele.  If their baby snail has tall eyeballs then what is/are the possible genotype(s) he could have?

• TT
• TT , Tt
• TT, Tt, tt
• tt

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous genes
• mutated DNA

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

• 100%
• 50%
• 25%
• 75%

Tags

NGSS.HS-LS3-3

What is the probability of homozygous dominant offspring?

• 0%
• 100%
• 50%
• 25%

Tags

NGSS.HS-LS3-3

A tall plant (TT) is crossed with a short plant (SS) and a medium plant (TS) results. This is what type of inheritance pattern?

• Incomplete Dominance
• Codominance

The hair form gene shows incomplete dominance. Straight hair is dominant, curly hair recessive, and wavy hair is heterozygous. Mr. and Mrs. Anderson both have wavy hair. What are the phenotypic possibilities for their children? You may chose more than one answer.

• 25% curly

• 100% wavy

• 25% straight

• 50% wavy

What are the blood types of the possible children that a woman (type O) and man (type AB) can have?

• O and AB
• O and A
• O and B
• A and B