AP Biology Ch 14 Genetics Test Review

One of the main reasons genes assort independent of one another  is that 

• they produce unrelated traits
• they produce related traits
• they are on the same chromosome
• they are on different chromosomes.

Tags

NGSS.HS-LS3-1

A single gene has 3 or more alternative forms. These are called

• heterozygotes
• multiple alleles
• epistatic
• polygenic

In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?

• complete dominance and recessiveness
• co-dominance
• incomplete dominance
• pleiotropy

Tags

NGSS.HS-LS3-1

If the parents of a cross are AaBcCc x aaBBcc. What is the probability of an offspring that is homozygous recessive for all 3 traits?

• 1/64
• 1/32
• 1/8
• O

Tags

NGSS.HS-LS3-3

Red x white = pink

• codominance
• multiple alleles
• incomplete dominance
• epistasis

In peas, the trait for tall plants is dominant (T) and the trait for short plants is recessive (t).  The trait for yellow seeds is dominant (Y) and the trait for green seeds is recessive (y).
A cross between two plants results in 292 tall, yellow plants and 103 short, green plants.  What are the most likely genotypes of the parents?

• TtYY x Ttyy
• TTYy x TTYy
• TTyy x TTYy
• TtYy x TtYy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

When crossing a homozygous recessive with a heterozygote, what is the chance of getting an offspring with the homozygous recessive phenotype?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

This pedigree chart is for a family, some of whose members exhibit the recessive trait, woolly hair. Affected individuals are indicated by an open square or circle. What is the likelihood that the progeny of D-3 and D-4 will have wooly hair?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Which of the following is an example of polygenic inheritance?

• pink flowers in snapdragons

• The ABO Blood group in humans

• Skin color in humans

• Huntington's disease in humans

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A new species of tulip was recently discovered. A population of pure red tulips was crossed with a population of pure blue tulips. The resulting F1 generation was all purple. This result is an example of which of the following?

• Complete dominance

• Incomplete dominance

• Co-dominance

• Linkage