BIO 2170 FINAL EXAM REVIEW QUESTIONS AND COMPLETE SOLUTIONS.
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Course
Bio 2170
Institution
Bio 2170
Methylases - Answer adds methyl group to restriction sites on cell's own DNA (blocks cleavage)
Silent mutation - Answer No change in amino acid sequence
Nonsense mutation - Answer Introduction of stop codon
Missense mutation - Answer Amino acid change at position
Dispersive ...
BIO 2170 FINAL EXAM REVIEW
QUESTIONS AND COMPLETE
SOLUTIONS.
Methylases - Answer adds methyl group to restriction sites on cell's own DNA (blocks cleavage)
Silent mutation - Answer No change in amino acid sequence
Nonsense mutation - Answer Introduction of stop codon
Missense mutation - Answer Amino acid change at position
Dispersive replication - Answer fragments of original DNA molecules are used as templates
Reciprocal translocation - Answer exchange of one part of a chromosome for another (problems in
meiosis)
Restriction enzymes - Answer usually palindromic /-sticky I-blunt
Southern blot - Answer used to detect specific sequences in DNA samples
Tumor Suppressor - Answer proteins whose normal activities inhibit cell to divide
Telomerase - Answer adds short stretch of DNA to end of chromosome to prevent shortening
checkpoints - Answer control mechanisms that ensure fidelity of cell division
PCR requires - Answer DNA template
, DNA polymerase
4 nucleoside triphosphate
2 primers
PCR is a cycle of - Answer denaturation, annealing, and extension
Aneuploidy - Answer chromosome lacking or present in excess
Polyploid - Answer organisms with complete extra sets of chromosome
Highly repetitive - Answer short repeating sequences
no coding function
(satellite)
Chromosomal mutation - Answer change in segments of DNA
loss, duplication, and rearrangement
Loss of function mutation - Answer almost always recessive
affect protein function
G1/S - Answer prepares cell for DNA replication
S cylcin - Answer initiate DNA synthesis
M cyclin - Answer prepares cell for mitosis
Restriction fragment length polymorphism - Answer result from small changes in DNA sequence
between chromosome that create to destroy restriction sites
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