Beyond Mendelian Genetics

Match the following

• Law of segregation

• is a type of inheritance in which two alleles of the same gene yield different traits in an individual.

• Sex-linked Inheritance

• explains that the pair of alleles separate from each other during gamete formation.

• Incomplete Dominance

• is a form of gene interaction in which both alleles of a gene are partially expressed.

• Codominance

• refers to the inheritance of traits that are located on genes on the sex chromosomes.

A husband is homozygous for blood type A and his wife is heterozygous for blood type B. What are the possible blood types for their offspring?

Select TWO correct answers.

• B

• O

• ABO

• AB

• A

Tags

NGSS.HS-LS3-2

In Snapdragons, petal color is inherited through incomplete dominance with the possible colors being red, white, and pink. What would be the chance of getting a white flower if you cross a red flower with a pink flower? (a)  

• 0%
• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

In Camellia flowers, petal color is inherited codominantly with the possible colors being red, white, and red and white spots. What would be the chance of getting a red flower if you cross a spotted flower with a spotted flower? (a)  

• 0%
• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-3

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

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

• Will 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 Will could father a type B child.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2