DNA and RNA Review

How does RNA differ from DNA?

• RNA contains uracil and deoxyribose
• RNA contains ribose and thymine
• RNA contains uracil and ribose
• RNA contains adenine and ribose

Which of the following describes RNA?

• RNA is usually double-stranded and contains the base thymine
• RNA is usually single-stranded and contains the base uracil
• RNA is longer than DNA and uses five bases to encode information
• RNA is made in the nucleus of eukaryotic cells and stays there to carry out its functions

How would the DNA sequence GCTATA be transcribed to mRNA?

• GCUAUA
• CGATAT
• CGAUAU
• GCUTUT

Tags

NGSS.HS-LS1-1

In eukaryotes, functional messenger RNA molecules are made from

• exons spliced together after introns are removed
• introns spliced together after eons are removed
• exons spliced together with introns
• long pieces of RNA shortened by the Dicer enzyme

An expressed gene

• functions as a promoter
• is transcribed into RNA
• codes for just one amino acid
• is made of mRNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is the function of mRNA?

• storage of food
• prevents mutations
• provides energy
• carries genetic message 

Tyra made a mistake while she was creating her chart. Which best identifies the mistake Tyra made?

• DNA is single-stranded while RNA is double-stranded.

• DNA remains in the nucleus while RNA leaves the nucleus.

• DNA contains a ribose sugar while RNA contains a deoxyribose sugar.

• DNA has bases of A, G, C, and U while RNA has bases of A, G, C, and T.

Which of these shows the correct order for the central dogma of molecular biology?

• DNA to protein to RNA

• RNA to DNA to protein

• protein to DNA to RNA

• DNA to RNA to protein

The enzyme required for transcription is

• DNA polymerase

• RNA polymerase

• RNAse

• Restriction Enzyme

A promoter site on DNA

• Initiates transcription

• Regulates termination

• Codes for RNA

• Transcribe repressor