Genetic Variation and Inheritance PreTest

Which process is responsible for creating new genetic combinations in sexually reproducing organisms?

• Mitosis

• Meiosis

• Binary fission

• Budding

Tags

NGSS.HS-LS3-2

What is a mutation?

• The process of cell division

• A change in the DNA sequence

• The pairing of chromosomes

• The replication of RNA

Tags

NGSS.HS-LS3-2

Which of the following is an example of an environmental factor that can cause mutations?

• Ultraviolet (UV) radiation

• DNA polymerase

• Ribosomes

• Glucose

Tags

NGSS.HS-LS3-2

During which process can errors in DNA replication lead to inheritable genetic variations?

• Translation

• Transcription

• DNA replication

• Protein folding

Tags

NGSS.HS-LS3-2

Which of the following best describes how traits are inherited from parents to offspring?

• Through the transfer of proteins

• Through the inheritance of genes

• Through learned behaviors

• Through environmental exposure

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which type of mutation involves the substitution of one base for another in the DNA sequence?

• Insertion

• Deletion

• Substitution

• Duplication

Tags

NGSS.HS-LS3-2

Explain how meiosis contributes to genetic variation in offspring.

• By producing identical cells

• By allowing crossing over and independent assortment

• By copying DNA without errors

• By preventing mutations

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

A student claims that exposure to certain chemicals can increase the rate of mutations in DNA. Which evidence supports this claim?

• Chemicals can cause changes in the DNA sequence, leading to mutations.

• Chemicals always repair DNA.

• Chemicals have no effect on DNA.

• Chemicals only affect proteins.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

If a DNA replication error occurs and is not corrected, what is a possible outcome for the organism’s offspring?

• The offspring will have identical DNA to the parent.

• The offspring may inherit a genetic variation.

• The offspring will not survive.

• The offspring will have no DNA.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which scenario best illustrates how environmental factors can lead to inheritable genetic changes?

• A person exercises daily and becomes stronger.

• A plant exposed to radiation develops a mutation that is passed to its seeds.

• An animal learns a new behavior.

• A cell divides by mitosis.

Tags

NGSS.HS-LS3-2