Protein Synthesis and DNA

What monomers are DNA and RNA consisted of?

• nitrogen base
• nucleotides
• sugar-phosphate backbone
• blood

Where do nucleotides joined to each other

• sugar and phosphate backbone 
• membranes
• polynucleotide
• adenine to cytocine

DNA has a ______ strand; RNA has a ______ strand.

• double/double
• double/triple
• double/single
• single/single

 What enzyme unwinds the double helix during replication and transcription?

• Helicase
• tRNA
• RNA polymerase
• mRNA

Transcription is the production of ___ from ___.

• protein, RNA
• RNA , DNA
• DNA, RNA
• DNA, protein

Translation is the production of ___ from ___.

• RNA, protein
• DNA, protein
• RNA, DNA
• protein, RNA

What type of bond join the nitrogen bases together in DNA? 

• covalent
• hydrogen
• mutual
• peptide

Which is not one of the three types of RNA?

• mRNA (messenger)
• rRNA (ribosomal)
• tRNA (transfer)
• nRNA (nitrogen)

Identify the complementary DNA strand: ATTACGAT

• GAAGTGCA
• TAATGCTA
• TCTUCAAA
• CGGCACG

In RNA, the nitrogen base____ replaces ____ that was present in DNA. 

• A, U (adenine, uracil)
• C, G (cytosine, guanine)
• U, T (uracil, thymine)
• U, A (uracil, adenine)