Wilb Unit 7 Test - Heredity

The graphic shows an organism reproducing. Which best describes an advantage of this type of reproduction?

• It allows for fast reproduction.

• It introduces genetic variation.

• It does not require any energy.

• It prevents mutations from occurring.

Which of the following is an advantage of sexual reproduction?

• It does not require organisms to use energy to find a mate.

• It results in genetic variation in a species.

• It allows a large number of identical organisms to rapidly reproduce.

• It increases the number of chromosomes in each generation.

Tags

NGSS.HS-LS4-2

What happens during fertilization in sexual reproduction?

• two haploid gametes combine and form a diploid zygote

• two diploid gametes combine and form a haploid zygote

• two haploid zygotes combine and form a diploid gamete

• two diploid zygotes combine and form a haploid gamete

A student creates a model of the two-step process of meiosis. Which choice could be used to correctly complete the model?

• A

• B

• C

• D

Tags

NGSS.HS-LS3-2

Which statement correctly describes the end products of meiosis?

• A. The end products of meiosis are four gametes, each of which has the same number of chromosomes as the parent cell.

• B. The end products of meiosis are four gametes, each of which has half the number of chromosomes as the parent cell.

• C. The end products of meiosis are two gametes, each of which has half the number of chromosomes as the parent cell.

• D. The end products of meiosis are two gametes, each of which has the same number of chromosomes as the parent cell.

Which rat cell underwent meiosis?

• Cell W

• Cell X

• Cell Y

• Cell Z

The diagram shows the process of crossing over. Which claim about crossing over in chromosomes is BEST supported by the diagram?

• Crossing over increases genetic diversity through deletion.

• Crossing over decreases genetic diversity through mutation.

• Crossing over increases genetic diversity by creating new combinations of genes.

• Crossing over decreases genetic diversity by inserting nucleotides into gene sequences.

Tags

NGSS.HS-LS4-2

The diagram shows nondisjunction that can occur during anaphase. Which BEST describes a result of nondisjunction?

• gametes that will continue to divide

• gametes with identical genetic information

• gametes with unique combinations of genes

• gametes with an improper number of chromosomes

Tags

NGSS.HS-LS3-2

Why are the processes of "crossing over" and "independent assortment" important events during meiosis?

• They result in identical sex cells.

• They double the chromosomes number.

• They result in the same number of chromosomes.

• They produce new combinations of genes on the chromosomes.

Which explanation of the inheritance of shape in pea plants is supported by the Punnett square?

• The alleles for shape show a pattern of codominance.

• The alleles for shape show a pattern of incomplete dominance.

• The allele for round shape (R) is dominant to the allele for wrinkled shape (r).

• The allele for wrinkled shape (r) is dominant to the allele for round shape (R).

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2