A nucleotide does NOT contain a. a 5 -carbon sugar b. an amino acid c. a nitrogen base d. a phosphate group

The process by which one type of bacteria is changed into another type is called a. transcription b. transformation c. duplication d. replication

The bonds that hold the two strands of DNA together come from a. the attraction of phosphate groups for each other b. strong bonds between nitrogenous bases and deoxyribose c. weak hydrogen bonds between the nitrogenous bases d. carbon-to-carbon bonds in the sugar portion of the nucleotides.

What evidence allowed Hershey and Chase to show that DNA alone carried the genetic information of a bacteriophage?

The process by which one strain of bacteria is apparently changed into another strain is called a. transcription b. translation c. transformation d. replication

In prokaryotes, DNA molecules are located in the a. nucleus b. ribosomes c. cytoplasm d. histones

Briefly describe the conclusion that could be drawn from the experiments of Frederick Griffith.

Before DNA could definitively be shown to be the genetic material in cells, scientists had to show that it could a. tolerate high temperatures b. carry and make copies of information c. be modified in response to environmental conditions. d. be broken down into small subunits

Which substance is not part of a nucleotide? A. a phosphate, B. a base, C. a sugar, D. water.

A nucleotide does NOT contain _____.

a. a phosphate

b. a nitrogenous base

c. a sugar

d. a lipid

Describe the components and structure of a DNA nucleotide.

Nucleotides consist of a phosphate group, a nitrogenous base, and a (A) fatty acid (B) starch (C) lipid (D) 5-carbon sugar (E) 6-carbon sugar

Which of the following does NOT describe the structure of DNA? (A) double helix (B) nucleotide polymer (C) sugar-phosphate backbone (D) contains adenine-uracil pairs (E) double stranded

Which of the following researchers used radioactive markers in experiments to show that DNA was the genetic material in cells? a. Frederick Griffith b. Oswald Avery c. Alfred Hershey and Martha Chase d. James Watson and Francis Crick