Protein Synthesis

Which of the following descriptions does NOT describe RNA?

• a nucleic acid made of nucleotides
• contains the sugar ribose
• contains the nitrogenous bases: adenine, guanine, thymine, and cytosine
• a single-stranded structure

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

• replication
• denaturation
• synthesis
• mitosis

Which of the following is not a type of RNA?

• mRNA
• uRNA
• rRNA
• tRNA

What is the long name for DNA?

• deoxynucleic acid
• deoxyribonucleic acid
• denatured ribonucleic acid
• deoxyribonuclear acid

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

• ATTCG
• TAAGC
• CGGTA
• UAAGC

DNA replication takes place before which process?

• synthesis
• denaturation
• replication
• mitosis

Tags

NGSS.HS-LS1-4

DNA replication uses existing DNA as a template to make new DNA, ending with an original strand and a new strand. Therefore, it is a ____ molecule.

• semiconservative
• denatured
• mutated
• fluid mosaic

In RNA, A always pairs with ____.

• C
• G
• U
• T

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

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

• made of a sugar, phosphate and nitrogenous base
• contains the nitrogenous bases A, U, C, G
• is a nucleic acid
• contains the nitrogenous bases A, T, C, G