Inheritance and Genetic Variation Exam

Which of the following provides the best description of the function of genes?

• Ridding individual cells of waste products
• Relaying information from the environment
• Producing energy through cellular respiration
• Controlling the production of specific proteins

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NGSS.HS-LS1-1

Which is the best representation of a Heterzygous genotype?

• AA
• Aa
• aa

What would the phenotypes of the offspring be when we cross two homozygous recessive parents? (Use scratch paper to help you answer the question)

• Dominant: 1 Recessive: 3
• Dominant: 2 Recessive: 2
• Dominant: 3 Recessive: 1
• Dominant: 4 Recessive: 0
• Dominant: 0 Recessive: 4

Tags

NGSS.HS-LS3-1

The offspring of sexually reproducing organisms can be distinguished from the offspring of asexually reproducing organisms by studying which of the following?

• The amount of time between fertilization and birth
• The sizes of the organisms when they reach adulthood
• The variety in the population of offspring
• The diet requirements for each organism

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A Punnett square showing the cross between two pea plants is shown. In pea plants, the smooth coat allele (R) is dominant over the wrinkled coat allele (r). (Use scratch paper to help you answer the question)

• 
• 
• 
• 

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

A complete Punnett square here shows a cross between two mice with different fur color, agouti (A) and black (a). This Punnett square can be used to make which of the following conclusions?

• Two agouti mice can’t produce offspring with black fur.
• Eventually, all the mice that descend from this pair will have black fur.
• The trait of agouti fur is an advantage to mice for avoiding predators.
• The trait of agouti fur is dominant over the trait of black fur.

Tags

NGSS.HS-LS3-1

Two brown-eyed parents can produce a child with blue eyes. Which of the following best explains how this is possible?

• Blue eyes are an adaptation that can help the survival of humans.
• Over many generations some characteristics become more frequent.
• Eye color is always a mixture of the traits of both parents.
• The genes passed on by the parents can combine in a new way in the child.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Any individual offspring produced through asexual reproduction is always:

• genetically identical to its parent.
• made up of cells with a cell wall.
• different from all of its siblings.
• very slow to develop and grow.

Tags

NGSS.MS-LS3-2

Phenotype is described as the genetic combination of an individual organism.

• True
• False

Tags

NGSS.HS-LS1-1

What would the genotype ratio be for the following cross? (Use scratch paper to help you answer the question)

• TT: 2/4 Tt: 1/4 tt: 1/4
• TT: 1/4 Tt: 1/4 tt: 2/4
• TT: 2/4 Tt: 0/4 tt: 2/4
• TT: 1/4 Tt: 2/4 tt: 1/4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3