ASU BIO 181: EXAM 2. Questions & Answers. Graded A+. VERIFIED.

ASU BIO 181: EXAM 2. Questions & Answers. Graded A+. VERIFIED. Which strand is produced more rapidly? - -Leading strand During DNA replication in the lagging strand there is production of this component? - -Okazaki fragment How many "stop" codons exist? - -3 The double helix of DNA is wrapped about 1¾ times around which of these components? - -Nucleosome Which enzyme unwraps the double helix? - -Helicase In the ribosome, what is the name of the bond that links one amino acid to the next? - -peptide bonds List the two basic categories of nitrogenous bases in nucleic acids. - -purine and pyrimidine In DNA, what does the nucleotide labeled as A pair with? - -Thymine During DNA replication is greatly reduced by enzymes that proof read the newly replicated DNA. - -True How many hydrogen bonds are there between an A and its paired nucleotide? - -2 During mRNA maturation what is the name of the part of the mRNA that is removed? - -introns DNA replication in eukaryotes is sped up by multiple origins of replication. - -true RNA synthesis, also called RNA transcription occurs in three phases. List them from beginning to end in order. - -initiation, elongation, termination Which nucleotide is different in RNA compared to DNA? - -uridine There are two types of protein synthesis in eukaryotic cells. These two types can be distinguished because the polyribosome is either or . - -free; membrane bound In eukaryotic cells the start codon