Bio 110 Exam 3 Study Guide Questions
With Correct Answers
Explain why DNA replication is called semiconervative. - CORRECT
ANSWER✔✔-DNA replication produces DNA molecules with 1 original
strand and 1 newly made daughter strand
site within a chromosome that serves as a starting point for DNA
replication; provides an opening called the replication bubble that
forms two replication forks - CORRECT ANSWER✔✔-Origin of
replication
provided by the origin of replication; - CORRECT ANSWER✔✔-
replication bubble
the area where two DNA strands have separated and new strands are
being synthesized - CORRECT ANSWER✔✔-replication fork
during DNA replication, DNA strand made in the same direction that the
replication fork is moving; it is synthesized as one long continuous
molecule - CORRECT ANSWER✔✔-leading strand
, during DNA replication, a DNA strand that is made as a series of small
Okazaki fragments that are eventually connected to form a continuous
strand - CORRECT ANSWER✔✔-lagging strand
Why is there a leading strand and a lagging strand during DNA
replication? - CORRECT ANSWER✔✔-one template runs 3' to 5' so the
daughter strand can be made 5' to 3' continuously. the other template
runs 5' to 3' so the daughter strand would have to be made 3' to 5'
continuously. polymerase cannot synthesize 3' to 5'
PROTEINS AND FUNCTIONS IN ORDER - CORRECT ANSWER✔✔-
PROTEINS AND FUNCTIONS IN ORDER
separates double-stranded DNA into single strands - CORRECT
ANSWER✔✔-DNA helicase
binds a single-stranded DNA and prevents it from re-forming a double
helix - CORRECT ANSWER✔✔-single- strand binding protein
removes tightened coils ahead of the replication fork - CORRECT
ANSWER✔✔-Topoisomerase
synthesizes short RNA primers - CORRECT ANSWER✔✔-DNA primase
With Correct Answers
Explain why DNA replication is called semiconervative. - CORRECT
ANSWER✔✔-DNA replication produces DNA molecules with 1 original
strand and 1 newly made daughter strand
site within a chromosome that serves as a starting point for DNA
replication; provides an opening called the replication bubble that
forms two replication forks - CORRECT ANSWER✔✔-Origin of
replication
provided by the origin of replication; - CORRECT ANSWER✔✔-
replication bubble
the area where two DNA strands have separated and new strands are
being synthesized - CORRECT ANSWER✔✔-replication fork
during DNA replication, DNA strand made in the same direction that the
replication fork is moving; it is synthesized as one long continuous
molecule - CORRECT ANSWER✔✔-leading strand
, during DNA replication, a DNA strand that is made as a series of small
Okazaki fragments that are eventually connected to form a continuous
strand - CORRECT ANSWER✔✔-lagging strand
Why is there a leading strand and a lagging strand during DNA
replication? - CORRECT ANSWER✔✔-one template runs 3' to 5' so the
daughter strand can be made 5' to 3' continuously. the other template
runs 5' to 3' so the daughter strand would have to be made 3' to 5'
continuously. polymerase cannot synthesize 3' to 5'
PROTEINS AND FUNCTIONS IN ORDER - CORRECT ANSWER✔✔-
PROTEINS AND FUNCTIONS IN ORDER
separates double-stranded DNA into single strands - CORRECT
ANSWER✔✔-DNA helicase
binds a single-stranded DNA and prevents it from re-forming a double
helix - CORRECT ANSWER✔✔-single- strand binding protein
removes tightened coils ahead of the replication fork - CORRECT
ANSWER✔✔-Topoisomerase
synthesizes short RNA primers - CORRECT ANSWER✔✔-DNA primase
