N/A — Exam

Question 1

Which statement best distinguishes plant cells and animal cells?

Revolt · Accepted Answer

Plant cells have large vacuoles, and animal cells do not.

Question 2

Which element is most important for adding strength to hair, feathers, and outer skin?

Revolt · Accepted Answer

sulfur

Question 3

Which best describes the relationship between DNA, genes, and chromosomes?

Revolt · Accepted Answer

Genes are segments of DNA; the DNA forms tight coils called chromosomes.

Question 4

A news article discussed a genetically engineered medicine that is used to enhance the production of antibodies that are used against disease. Which medicine can this article be about?

Revolt · Accepted Answer

insulin; penicillin

Question 5

Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is homozygous for attached earlobes. Which describes the genotypes of their offspring?

Revolt · Accepted Answer

100 percent Ee

Question 6

Which factor can decrease the rate of a chemical reaction?

Revolt · Accepted Answer

low temperature

Question 7

Suzanne has type A– blood. Which blood type could she receive in a blood transfusion?

Revolt · Accepted Answer

O–

Question 8

Which is an advantage of producing genetically engineered crops that have pest-resistant genes?

Revolt · Accepted Answer

reduces the use of pesticides for certain insects

Question 9

Kai looks at a photo of herself with her parents. She notices that, while her features are similar to her parents’ features, they do not appear to be identical. Which explains why this is the case?

Revolt · Accepted Answer

Their DNA is made of different codon sequences.

Question 10

Which phase of mitosis is shown in the diagram?

Revolt · Accepted Answer

anaphase

N/A — Exam Answers

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