DNA and RNA Review

A DNA molecule is a polymer composed of subunits known as:

• disaccharides

• nucleotides

• ribose sugars

• uracil molecules

What is the role of DNA in controlling cellular activity?

• DNA provides energy for all cell activities

• DNA determines which proteins are produced by the cell

• DNA is used by cells for the excretion of nitrogenous wastes

• DNA provides nucleotides for the construction of plasma membranes

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NGSS.HS-LS1-1

NGSS.HS-LS1-4

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

• Nitrogenous base pairs are formed

• Hydrogen bonds are broken

• A double-stranded molecule unwinds

• Ribosomes are synthesized

The difference between RNA and DNA are

• RNA has ribose sugar and DNA has deoxyribose

• DNA is double stranded and RNA is single stranded

• RNA has uracil and DNA has thymine

• All of the above

The diagram represents molecular structures involved in protein synthesis. Structure 1 represents:

• a part of a polypeptide chain

• a portion of a DNA molecule

• a portion of RNA molecule

• the building blocks of proteins

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NGSS.HS-LS1-1

Proline, methionine, and aspartic acid represent three types of:

• Fatty acids

• hormones

• amino acids

• enzymes

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NGSS.HS-LS1-6

Structure 2 is synthesized in the:

• nucleus

• vacuole

• ribosome

• lysosome

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NGSS.HS-LS1-1

NGSS.HS-LS1-6

Which scientists developed the double helix model of the DNA molecule?

• Hardy and Weinberg

• Watson and Crick

• Darwin and Lamarck

• Miller and Urey

What would be the complimentary DNA Strand for the following:

C-G-T

• C-G-T

• G-C-U

• G-C-A

• C-G-U

What would be the mRNA Strand for the following DNA Strand:

C-A-T

• G-U-A

• G-C-A

• G-C-T

• G-C-U