Unit 6 Review

Unit 6 Review

Nonmendelian Genetics

Mutations

Meiosis

Multiple Choice

Suppose a white-furred rabbit breed with a black-furred rabbit and all of their offspring have a phenotype of gray fur. What does the gene for fur color in rabbits appear to be an example of?

• complete dominance

• codominance

• incomplete dominance

• Mosaicism

Multiple Choice

In the ABO blood type system the A and B alleles are dominant to O allele, and A and B are codominant to each other.

Select the genotype that reflects codominance inheritance.

• AO

• BO

• AB

• OO

Multiple Choice

Hemophilia is a recessive x-linked disorder.

Which genotype represents a male with hemophilia?

• X^HX^h

• X^HY

• X^hX^h

• X^hY

Multiple Choice

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R X ^r ?

• male with white eyes

• male with red eyes

• female with red eyes

• female with white eyes

Multiple Choice

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?

• 0%

• 50%

• 25%

• 100%

Multiple Choice

You are exploring the jungle and find a new species of plant. Some of the plants have red flowers and some have yellow flowers. You cross a red flowering plant with a yellow flowering plant and all the offspring have red/yellow flowers. You might assume that the alleles for flower

color in this plant show ____________________.

• complete dominance

• incomplete dominance

• codominance

Multiple Choice

ATTTGAGCC- Original

ATTGAGCC - Mutated

The example above is an example of a

• Insertion- Frameshift

• Deletion- Substitution

• Deletion -Frameshift

• All of the above

Multiple Choice

Identify the SUBSTITUTION mutation form the following:

ATG CCA AAT

• ATG TCA AAT

• ATG CCT AAA T

• ATG CCA AAT

• ATC CA AT

Multiple Choice

A segment of DNA produces methionine, threonine, histidine, aspartate, and glycine when translated. A substitution mutation occurs and causes the sythesis of the segment shown. Which is the new peptide chain when the new DNA segment is translated?

• methionine, leucine, histidine, aspartate, glycine

• methionine, phenylalanine, histidine, aspartate, glycine

• Methionine, proline, histidine, aspartate, glycine

• methionine, serine, histidine, aspartate, glycine

Multiple Choice

Are the 2 cells produced at the end of meiosis I diploid (2N) or haploid (n)

• Diploid (2N)

• Haploid (N)

Multiple Choice

What process is depicted in this image?

• Meiosis I

• Anaphase

• Crossing Over

• Mutation

Multiple Select

Where does meiosis occur for males & females (select 2)

• Testes

• Skin

• Ovaries

• Urethra