BIOL 1107 Exam 3 2026 Exam
Questions and Correct
Answers | New Update
deoxyribonucleic acid (dna) - ANSWER ✔✔a double-stranded, helical
nucleic acid molecule capable of replicating and determining the
inherited structure of a cell's proteins.
adenine - ANSWER ✔✔purine; the base that pairs with Thymine in
DNA
guanine - ANSWER ✔✔purine; base that pairs with cytosine
thymine - ANSWER ✔✔pyrimidine; base that pairs with adenine
,cytosine - ANSWER ✔✔pyrimidine; base that pairs with guanine
chargaff's rule - ANSWER ✔✔A = T and G = C
phosphodiester bonds - ANSWER ✔✔bonds between phosphate
group and pentose sugar in nucleic acids
x-ray diffraction - ANSWER ✔✔an analytical method in which X-rays
change direction on contact with matter, resulting in changes in radiation
intensity, that is used to determine the three-dimensional arrangement of
atoms
double-helix model - ANSWER ✔✔explains Chargaff's rule of base
pairing and how the two strands of DNA are held together
complementary base pairing - ANSWER ✔✔-wherever an A occurs in
one strand, a T must be opposite it in the other strand
-wherever a G occurs in one strand, a C must be opposite
semiconservative replication - ANSWER ✔✔each new DNA molecule
consists of one new strand and one old strand
, conservative replication model - ANSWER ✔✔the two strands of the
original molecule serve as templates for the two strands of a new DNA
molecule, then rewind into all "old" molecule
dispersive replication model - ANSWER ✔✔neither parental strand is
conserved and both chains of each replicated molecule contain old and
new segments
DNA polymerase - ANSWER ✔✔enzyme involved in DNA replication
that joins individual nucleotides to produce a DNA molecule
sliding DNA clamp - ANSWER ✔✔protein that encircles DNA and
attaches to the rear of DNA polymerase
DNA helicase - ANSWER ✔✔unwinds the DNA strands, producing a
Y-shaped replication fork
single-stranded binding proteins (ssbs) - ANSWER ✔✔coat the
exposed single-stranded DNA segments, keeping them from pairing
primer - ANSWER ✔✔a new strand begins with a short chain of RNA
okazaki fragments - ANSWER ✔✔short fragments of DNA that are a
result of the synthesis of the lagging strand during DNA replication
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Correct
Answers | New Update
deoxyribonucleic acid (dna) - ANSWER ✔✔a double-stranded, helical
nucleic acid molecule capable of replicating and determining the
inherited structure of a cell's proteins.
adenine - ANSWER ✔✔purine; the base that pairs with Thymine in
DNA
guanine - ANSWER ✔✔purine; base that pairs with cytosine
thymine - ANSWER ✔✔pyrimidine; base that pairs with adenine
,cytosine - ANSWER ✔✔pyrimidine; base that pairs with guanine
chargaff's rule - ANSWER ✔✔A = T and G = C
phosphodiester bonds - ANSWER ✔✔bonds between phosphate
group and pentose sugar in nucleic acids
x-ray diffraction - ANSWER ✔✔an analytical method in which X-rays
change direction on contact with matter, resulting in changes in radiation
intensity, that is used to determine the three-dimensional arrangement of
atoms
double-helix model - ANSWER ✔✔explains Chargaff's rule of base
pairing and how the two strands of DNA are held together
complementary base pairing - ANSWER ✔✔-wherever an A occurs in
one strand, a T must be opposite it in the other strand
-wherever a G occurs in one strand, a C must be opposite
semiconservative replication - ANSWER ✔✔each new DNA molecule
consists of one new strand and one old strand
, conservative replication model - ANSWER ✔✔the two strands of the
original molecule serve as templates for the two strands of a new DNA
molecule, then rewind into all "old" molecule
dispersive replication model - ANSWER ✔✔neither parental strand is
conserved and both chains of each replicated molecule contain old and
new segments
DNA polymerase - ANSWER ✔✔enzyme involved in DNA replication
that joins individual nucleotides to produce a DNA molecule
sliding DNA clamp - ANSWER ✔✔protein that encircles DNA and
attaches to the rear of DNA polymerase
DNA helicase - ANSWER ✔✔unwinds the DNA strands, producing a
Y-shaped replication fork
single-stranded binding proteins (ssbs) - ANSWER ✔✔coat the
exposed single-stranded DNA segments, keeping them from pairing
primer - ANSWER ✔✔a new strand begins with a short chain of RNA
okazaki fragments - ANSWER ✔✔short fragments of DNA that are a
result of the synthesis of the lagging strand during DNA replication
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
