Lab: Heredity and Punnett Squares

Question 1

Having straight hair (S) is dominant over having curly hair (s). A heterozygous parent with straight hair is crossed with a homozygous recessive parent with curly.What is the probability that the offspring will have curly hair?

Revolt · Accepted Answer

50%

Question 2

Having straight hair coat (S) is dominant over having curly hair coat (s). A homozygous dominant parent is crossed with a heterozygous parent. The Punnett square shows the possible genotypes of the offspring.

Revolt · Accepted Answer

✔ SS; A:: SS; B:: Ss; C:: SS; D:: Ss

Question 3

SS✔ Ssss

Revolt · Accepted Answer

✔ Ss

Question 4

✔ SSSsss

Revolt · Accepted Answer

✔ SS

Question 5

SS✔ Ssss

Revolt · Accepted Answer

✔ Ss

Question 6

AA✔ Aaaa

Revolt · Accepted Answer

✔ Aa

Question 7

⇒ black

Revolt · Accepted Answer

123379

Question 8

Having black hair coat (A) is dominant over having chestnut hair coat (a). Two heterozygous sheep are crossed.

Revolt · Accepted Answer

123380; 123381

Question 9

Use these options to describe each genotype.

Revolt · Accepted Answer

Ss is an example of .: heterozygous; SS is an example of .: homozygous dominant; ss is an example of .: homozygous recessive

Question 10

✔ homozygous dominanthomozygous recessiveheterozygous

Revolt · Accepted Answer

✔ homozygous dominant

Lab: Heredity and Punnett Squares Answers

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