RNA and Protein Synthesis

RNA contains the sugar

• ribose

• deoxyribose

• glucose

• lactose

Unlike DNA, RNA contains

• adenine

• uracil

• phosphate groups

• thymine

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 of the following is true?

• RNA is usually single-stranded

• DNA is usually single-stranded

• DNA contains uracil

• RNA contains thymine

Which type of RNA brings the information in the genetic code from the nucleus to other parts of the cell?

• rRNA

• tRNA

• mRNA

• RNA polymerase

Which of the following is true of transcription?

• In eukaryotes, transcription takes place in the cytoplasm and requires many enzyme

• RNA polymerase recognizes and binds to specific regions of the DNA introns

• RNA editing removes the exons from the pre-mRNA, leaving only introns in the final molecule

• RNA polymerase can make many molecules of RNA from a single DNA sequence

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

From which molecules are mRNA molecules transcribed?

• tRNA

• rRNA

• DNA

• proteins

What is produced during transcription?

• RNA molecules

• DNA molecules

• RNA polymerase

• proteins

During eukaryotic transcription, an RNA molecule is formed that is

• complementary to both stands of DNA

• identical to an entire single strand of DNA

• double-stranded and inside the nucleus

• complementary to one strand of DNA