Genetics and Heredity Review

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NGSS.MS-LS1-2

A mutation occurs to a gene in a body cell that results in tumors growing along a person's nerves or under the skin. They increase the chances of the person having learning disabilities. What is the impact of this mutation?

• The mutation is harmful.

• The mutation is beneficial.

• The mutation is neutral.

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NGSS.MS-LS3-1

Over many generations, mutations have occurred to the harmless California King Snake that have caused it to resemble the poisonous western coral snake. What is the impact of this mutation?

• The mutation will not be passed on to offspring.

• It is likely neutral.

• It is likely harmful.

• It is likely beneficial.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Which of the following is a phenotype?

• homozygous

• bb

• Bb

• blue

In guinea pigs, long hair (S) is dominant over short hair (s). What is the probability that the guinea pig will have short hair if you cross a heterozygous and a homozygous recessive guinea pig?

• 25%

• 50%

• 75%

• 100%

If mom and dad both have blue eyes, what is the probability that their child will have brown eyes? (Brown eyes = B, blue eyes = b)

• 0%

• 25%

• 50%

• 100%

The trait for straight thumb (H) is dominant over the trait for hitchhikers thumb (h). Two people with straight thumbs (Hh x Hh) got married. What percentage of their offspring will most likely have hitchhikers' thumb?

• 25%

• 50%

• 75%

• 100%

Which is a homozygous dominant genotype?

• Ff

• ff

• FF

• none of these

Which trait is most likely determined by genes?

• when you wake up

• whether you have dimples or not

• your age

• what you like to eat

Tags

NGSS.MS-LS3-1

What is the term for a different form of a gene?

• genotype

• trait

• allele

• heredity