BIOD 102 Portage Learning Exam Questions and Answers
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Course
2024/2025
Institution
2024/2025
BIOD 102 Portage Learning Exam
Questions and Answers
What are the 2 phases of the cell cycle? - Answer-Interphase and Mitotic phase
What does interphase consist of? - Answer-G1, S, G2
G1 and G2 - Answer-the gap phases that are characterized by cellular growth such as
protein and organelle prod...
replication bubble - Answer✔✔-as the helices begins to separate the double strands, a visible
replication bubble forms that will expand as replication continues along the strand
single stranded binding proteins - Answer✔✔-act as a wedge to keep the parent strands
separated and stabilized
topoisomerase - Answer✔✔-in the front of the fork and its function is to break the hydrogen
bonds and the nucleotide bases and it plays a role in rejoining the DNA strands when replication
is complete; it is able a stabilizing enzyme that reduces the strain in the strands that occur
during replication
RNA primers - Answer✔✔-complementary to the parental DNA strand
RNA - Answer✔✔-single-stranded and contains sugar ribose and it does NOT have a thymine
but a uracil
primase - Answer✔✔-enzyme that facilitates the synthesis of an RNA primer by using the
unwound DNA strand as a template; it binds to the 3' end of the parent strand and begins
adding complementary RNA nucleotides as it moves toward the 5' end of the parent strand
DNA polymerase - Answer✔✔-enzymes that add nucleotides to the 3' end of the existing chain
via dehydration reactions
triphosphate tail - Answer✔✔-three phosphate group; has a negative charge around it
pyrophosphate - Answer✔✔-will undergo hydrolysis reaction which splits the molecule into two
inorganic phosphates and energy is released in the process
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