PRINCIPLES OF BIOCHEMISTRYFINAL EXAM
ACTUAL 2026 QUESTIONS AND VERIFIED
ANSWERS
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Terms in this set (120)
During protein synthesis in a methionine
eukaryotes, the first amino acid
incorporated into the polypeptide
chain is ____________
A. any of the 20 standard amino acids
B. a methionine
C. always inosinate
D. an alnine
DNA contains 2 antiparallel strands of 3'->5' phosphodiester linkages
nucleotides joined by
,Eukaryotic DNA molecules are a nucleosome
packaged with histones to form
___________, which is the fundamental unit
of chromatin
What is a nucleosome composed of? histones H2A, H2B, H3, H4 (two molecules each)
and 146 bp of DNA
Name this type of RNA: mRNA
Carries genetic information from the
gene to a ribosome, where the
corresponding protein can be
synthesized
Name this type of RNA: rRNA
An integral part of ribosomes,
accounts for ~80% of RNA in cells
Name this type of RNA: tRNA
Carries activated amino acids to
ribosomes for polypeptide synthesis
, Name this type of RNA: small RNA
has catalytic activity (catalyze
cleavage of RNA) or associates with
proteins to enhance activity
DNA double helix unwinds at a origin of replication (Ori)
specific point known as the
Prokaryotes have ______ (one/multiple) one; multiple
Ori, while Eukaryotes have ________
(one/multiple)
DNA replication is ________ bidirectional
(unidirectional/ bidirectional)
What is the function of DNA synthesizes new DNA strand
polymerase III?
ACTUAL 2026 QUESTIONS AND VERIFIED
ANSWERS
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (120)
During protein synthesis in a methionine
eukaryotes, the first amino acid
incorporated into the polypeptide
chain is ____________
A. any of the 20 standard amino acids
B. a methionine
C. always inosinate
D. an alnine
DNA contains 2 antiparallel strands of 3'->5' phosphodiester linkages
nucleotides joined by
,Eukaryotic DNA molecules are a nucleosome
packaged with histones to form
___________, which is the fundamental unit
of chromatin
What is a nucleosome composed of? histones H2A, H2B, H3, H4 (two molecules each)
and 146 bp of DNA
Name this type of RNA: mRNA
Carries genetic information from the
gene to a ribosome, where the
corresponding protein can be
synthesized
Name this type of RNA: rRNA
An integral part of ribosomes,
accounts for ~80% of RNA in cells
Name this type of RNA: tRNA
Carries activated amino acids to
ribosomes for polypeptide synthesis
, Name this type of RNA: small RNA
has catalytic activity (catalyze
cleavage of RNA) or associates with
proteins to enhance activity
DNA double helix unwinds at a origin of replication (Ori)
specific point known as the
Prokaryotes have ______ (one/multiple) one; multiple
Ori, while Eukaryotes have ________
(one/multiple)
DNA replication is ________ bidirectional
(unidirectional/ bidirectional)
What is the function of DNA synthesizes new DNA strand
polymerase III?
