DNA Review

Which event is NOT part of the process of DNA replication?

• Ribosomes are synthesized.
• A double stranded molecule unwinds.
• Nitrogenous base pairs are formed.
• Hydrogen bonds are broken.

The nitrogen bases found in DNA are represented by the letters

• T, U, G, A, and C
• T,A, P and C
• A, U, G, and C
• A, T, G, and C

Genes are the basic unit of heredity. Genetic information is encoded in a linear sequence of

• nucleic acids.
• amino acids.
• carbohydrates.
• fatty acids.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

In a DNA molecule, the number of guanine nucleotides will most likely equal the number of- 

• thymine.
• adenine.
• cytosine.
• ribose.

Which compound is NOT part of the DNA nucleotide?

• thymine
• deoxyribose
• adenine
• glucose

The sequence of nitrogen bases on the complementary chain in the diagram is-

• T-G-A-C
• U-G-A-C
• U-A-G-C
• T-A-G-C

The diagram shown represents a portion of DNA. The letter x represents two nitrogen bases that are

• complementary and joined by ionic bonds
• identical and joined by hydrogen bonds.
• identical and joined by ionic bonds.
• complementary and joined by hydrogen bonds.

At which position are hydrogen bonds found?

• Position 1

• Position 2

• Position 3

• Position 4

Which answer choice correctly identifies the parts in a DNA nucleotide?

• A= phosphate group B= deoxyribose C= thymine

• A= phosphate group B= ribose C= uracil

• A= uracil B= deoxyribose C= thymine

• A= thymine B= ribose C= uracil

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• ribosome
• nucleus

Tags

NGSS.MS-LS1-2