Bio 1 Unit 2 Review

A protein is being assembled when

• DNA is being translated

• RNA is being transcribed

• RNA is being translated.

• DNA is being transcribed.

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NGSS.HS-LS1-1

Because of base pairing in DNA, the percentage of

• adenine molecules in DNA is about equal to the percentage of guanine molecules.

• thymine molecules in DNA is about equal to the percentage of adenine molecules

• adenine molecules in DNA is much greater than the percentage of thymine molecules.

• cytosine molecules in DNA is much greater than the percentage of guanine molecules.

Which of the following is NOT a function of proteins?

• store and transmit genetic information

• help to fight disease

• control the rate of reactions

• move substances into or out of cells

Which of the following is true?

• RNA is usually single-stranded.

• DNA is usually single-stranded.

• DNA contains uracil.

• RNA contains thymine.

In eukaryotes

• Transcription takes place in the cytoplasm, and translation takes place in the nucleus

• Transcription takes place in the nucleus, and translation takes place in the cytoplasm.

• Transcription and translation both take place in the nucleus

• Transcription and translation both take place in the cytoplasm.

Which of the following is a nucleotide found in DNA?

• adenine + phosphate group + thymine

• cytosine + phosphate group + guanine

• deoxyribose + phosphate group + polymerase

• deoxyribose + phosphate group + cytosine

Figure 12–2 shows the structure of

• a DNA molecule.

• an amino acid.

• a RNA molecule.

• a protein

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NGSS.HS-LS1-1

Which structure makes proteins using coded instructions that come from the nucleus?

• golgi apparatus

• mitochondrion

• vacuole

• ribosome

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NGSS.HS-LS1-1

Which of the following are found in both DNA and RNA?

• ribose, phosphate groups, and adenine

• deoxyribose, phosphate groups, and guanine

• phosphate groups, guanine, and cytosine

• phosphate groups, guanine, and thymine

Which molecules are involved in protein synthesis?

• transfer RNA, introns, and mutagens

• messenger RNA, introns, and ribosomal RNA

• ribosomal RNA, transfer RNA, and mutagens

• messenger RNA, ribosomal RNA, and transfer RNA