Unit 4 Reteach

​Unit 4 Reteach

By Alexis Mcfee

Unit 4 Test Analysis

• 32% made above a 80%

• 22% made between 80%-70%

• 4% made between 70%-60%

• 42%made below 60%

46.15% got the answer incorrect.

Wrong Answer

53.85% got the answer correct.

​Right Answer

Question Stats

Multiple Choice

Luraine, who has blood type O, has a child with blood type B. She claims Max is the child's father; but he denies this. Max's blood type is AB. How could blood typing explain that Max could, or could not, be the father of this child?

• Since Max has blood type AB, it would be impossible for him to father a child with blood type B.

• Max could donate the B allele and, with the O allele of the mother, could produce a child with type B.

  
  

• The child from these two parents would have AB blood, since A and B are codominant and O is recessive.

• It is impossible to tell from the information given whether or not Max could father a type B child.

49% got the answer incorrect.

​Wrong Answer

51% got the answer correct.

​Right Answer

Question Stats

Multiple Select

Which of the following statements is accurate when crossing a homozygous dominant parent with a heterozygous parent for any given trait?

Choose TWO correct answers.

• 25% of the offspring will be homozygous recessive.

• 75% of the offspring will be homozygous dominant.

• 100% of the offspring will show the dominant phenotype.

• All of the offspring will show the recessive phenotype

• None of the offspring will show the recessive phenotype.

50.33% got the answer incorrect.

Wrong Answer

49.67% got the answer correct.

​Right Answer

Question Stats

Multiple Choice

In pea plants, round and yellow are dominant traits, and wrinkled and green are recessive traits. What is the genotype for a pea plant that is homozygous recessive for both traits?

• Rryy

• RRYY

• RrYy

• rryy