26 pt 2

The correct structure of DNA components can be presented as

• Sugar (ribose), phosphate group, and nitrogenous base (adenine, thymine, cytosine, or guanine)
• Ribose, phosphate group, and nitrogenous base (adenine, thymine, cytosine, or guanine)
• Deoxyribose, phosphate group, and nitrogenous base (adenine, uracil, cytosine, or guanine)
• phosphate-sugar-base.

Which of the following is a characteristic of double-stranded DNA?

• Single-stranded structure
• hydrogen bonds hold together the two strands

• Non-complementary strands
• Parallel orientation

Which of the following DNA molecules is the most stable?

• The DNA molecule with the lowest percentage of GC base pairs
• The DNA molecule with the highest percentage of AT base pairs
• The DNA molecule with the most mutations
• GCGTGCAC CGCACGTG

Which of the following best describes transcription?

• Creating a protein from amino acids
• DNA - RNA

• Converting RNA into DNA
• Replicating a protein's structure

The enzyme that accomplishes transcription is termed

• Amylase
• RNA polymerase
• Lipase
• DNA polymerase

The transcription enzyme first attaches to the

_ of the gene.

• promoter
• exon
• intron
• terminator

The snRNPs are also called

• snRNAs
• snurps
• snurps
• snRNPs

Which of the following do snRmPs bind to?

• rRNA
• tRNA
• mRNA
• 5 and 3' ends of the intron

Translation is the synthesis of proteins from

• tRNA by ribosomes
• DNA by ribosomes
• mRNA

• rRNA by ribosomes

Which of the following occurs as the ribosome shifts down the mRNA by a distance of three nucleotides?

• Replication
• Transcription
• The tRNA that was in the P site moves into the E site.

• Translation