DNA/RNA Answers
2) 12
4) purines; pyrimidines
6) sequence
of bases.
8) DNA polymerase
10) to add nucleotides to the end of a growing
DNA strand
12) a
14) e
16) join
18)
proofreading during DNA replication mismatch repair excision repair
complementary base pairing during DNA replication
20) DNA is
double-stranded, whereas RNA is single-stranded.
22) DNA
polymerase can assemble DNA only in the 5' to 3' direction
24) experience a gradual reduction of chromosome
length with each replication cycle.
26) ATP, RNA, and DNA
28) ACU.
30) may
code for the same amino acid as another codon.
32) 3' to 5'; 3'
34) exons
36) UUU.
38) tRNA
40) some tRNAs have anticodons that
recognize two or more different codons. the rules for
base pairing between the third base of a codon and tRNA are flexible.
42) rRNA
44) ligase
46) A stop codon is
encountered.
48) groups of ribosomes
reading a single mRNA simultaneously
50)
point
52) GTTACG with CAAUGC
54) aminoacyl-tRNA synthetase
56) DNA
58)
relieving strain in the DNA ahead of the replication fork