Genetic Inheritance

In a pedigree, individuals that are carriers are represented as shapes that are (a)   shaded.

• Not shaded

• Fully shaded

• Half shaded

Answer explanation

In a pedigree, carriers are represented as shapes that are half shaded, indicating they carry a genetic trait but do not express it.

In a pedigree, individuals that are unaffected are represented as shapes that are (a)   .

• Not shaded

• Fully shaded

• Half shaded

Answer explanation

In a pedigree, individuals that are unaffected are represented as shapes that are Not shaded.

An individual with the genotype aa would have (a)  

• 6 fingers and be a carrier

• 5 fingers

• 6 fingers and not be a carrier

Answer explanation

An individual with the genotype aa would have 5 fingers, as the recessive allele 'a' does not affect the number of fingers, and being a carrier is not related to the number of fingers.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Cystic Fibrosis is a recessive trait. Which genotype(s) will not have cystic fibrosis? Pick two.

• CC

• Cc

• cc

Answer explanation

The genotypes CC and Cc will not have cystic fibrosis because cystic fibrosis is a recessive trait, and individuals with the genotype cc will have cystic fibrosis.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An individual with the genotype AA would have (a)  

• 6 fingers and not be a carrier

• 6 fingers and be a carrier

• 5 fingers

Answer explanation

The individual with genotype AA would have 6 fingers and not be a carrier because AA represents the dominant allele for having 6 fingers and not being a carrier.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many kids did the mother and father from the first generation have? (a)  

• 2

• 4

• 5

• 6

Answer explanation

The mother and father from the first generation had 4 kids, as indicated by the correct answer choice. Therefore, the correct answer is 4.

Tags

NGSS.HS-LS3-1

What should you use to predict the traits of offspring when you know the genes of two parents?

• a graph

• a flow chart

• a data table

• a Punnett square

Which statement best supports why many offspring look similar to their parents?

• Offspring inherit traits from only one parent.

• Offspring inherit traits from both parents.

• Parents choose which traits to pass on to their offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What allele combination should go in the missing box?

• AA

• Aa

• aa

• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

"T" is dominant, "t" is recessive. If an organism has the genes "Tt." Which will trait will result?

• "T" dominant

• "t" recessive

Tags

NGSS.HS-LS3-1