DNA and RNA Structure/DNA Replication Quiz

What is the long name for DNA?

• 1. deoxyribonucleic acid

• 1. deoxynucleic acid

• 1. denatured ribonucleic acid

• ribonucleic acid

1. Which of the following descriptions does NOT describe RNA?

• a nucleic acid made of nucleotides

• contains the sugar ribose

• 1. contains the nitrogenous bases: adenine, guanine, thymine, and cytosine

• a single-stranded structure

1. If one strand of a DNA molecule contains the letters ATTCG, what would be the letters in the complementary strand?

• ATTCG

• TAAGC

• CGGTA

• UAAGC

During which phase of cell division does DNA replicate?

• prophase

• S phase

• Anaphase

• metaphase

The process by which DNA makes a copy of itself is known as ______.

• replication

• denaturation

• synthesis

• mitosis

1. Which of the following statements is true of DNA but not RNA?

• 1. made of a sugar, phosphate and nitrogenous base

• contains the nitrogenous bases A, U, C, G

• 1. is a nucleic acid

• contains the nitrogenous bases A, T, C, G

DNA replication uses existing DNA as a template to make new DNA. Therefore, it is a ____ molecule.

• semiconservative

• denatured

• mutated

• fluid mosaic

In RNA, A always pairs with ____.

• C

• U

• T

• G

1. Which of the following is not a type of RNA?

• mRNA

• tRNA

• uRNA

• rRNA

During DNA replication, enzymes perform functions to ensure that the DNA is copied appropriately. Which enzyme is responsible for “unzipping” the original strand of DNA?

• DNA polymerase

• ligase

• helicase

• suitcase