Lab: Heredity and Punnett Squares

Question 1

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Fill in the blanks to complete the statements. In the lab, the dominant phenotype for horse hair color is ⇒ black and the recessive phenotype for horse hair color is ⇒ chestnut.

Revolt · Accepted Answer

⇒ black: chestnut; ⇒ chestnut: 123370

Question 2

Question 3

Revolt · Accepted Answer

homozygous recessive

Question 3

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

Revolt · Accepted Answer

25; ⇒ 75: 123381

Question 4

Use these options to describe each genotype. A: homozygous dominant B: homozygous recessive C: heterozygous Ss is an example of . SS is an example of . ss is an example of .

Revolt · Accepted Answer

heterozygous; Selection 1: heterozygous; Selection 2: homozygous dominant; Selection 3: homozygous recessive

Question 5

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 6

⇒ black

Revolt · Accepted Answer

123379

Question 7

AA✔ Aaaa

Revolt · Accepted Answer

✔ Aa

Question 8

If straight hair coat (S) is dominant over curly hair (s), can two horses with straight hair coat produce an offspring with curly hair? Explain your answer.

Revolt · Accepted Answer

Yes, two horses with straight hair can produce a curly-haired offspring if both parents are heterozygous (Ss). This means each parent carries one dominant allele for straight hair and one recessive allele for curly hair. If an offspring inherits the recessive allele (s) from both parents, it will have the genotype ss and will have curly hair.

Question 9

Question 123386

Revolt · Accepted Answer

homozygous dominant

Question 10

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

Yes, the offspring can have curly hair.

Lab: Heredity and Punnett Squares Answers

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