BIOL 101L FINAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS WELL VERIFIED
.GRADED A+
dihybrid cross - ANSWER -A cross between individuals that have
different alleles for the same gene
remove peel - ANSWER -potato skin is dark brown we dont want false
absorbancy
smaller chucks - ANSWER -reduce blending, no denaturing
, distilled water - ANSWER -no cofounding variables and put in a
hypotonic solution
cheesecloth - ANSWER -remove large chunks
overflows fluid - ANSWER -no air no oxygen
keep solution on ice - ANSWER -slow down
PCR (polymerase chain reaction) - ANSWER -makes many copies of a
particular segment of DNA
2 Reasons why PCR is used: - ANSWER -1) it makes many copies from a
DNA strand
2) it selectively amplifies only the parts of the human genome (the
DNA) that is under examination
enzyme used in PCR - ANSWER -Taq polymerase
Why is Taq Polymerase an ideal enzyme for PCR? - ANSWER -it is stable
enough to withstand dramatic temperature changes needed for the
DNA to be replicated a number of times
CORRECT DETAILED ANSWERS WELL VERIFIED
.GRADED A+
dihybrid cross - ANSWER -A cross between individuals that have
different alleles for the same gene
remove peel - ANSWER -potato skin is dark brown we dont want false
absorbancy
smaller chucks - ANSWER -reduce blending, no denaturing
, distilled water - ANSWER -no cofounding variables and put in a
hypotonic solution
cheesecloth - ANSWER -remove large chunks
overflows fluid - ANSWER -no air no oxygen
keep solution on ice - ANSWER -slow down
PCR (polymerase chain reaction) - ANSWER -makes many copies of a
particular segment of DNA
2 Reasons why PCR is used: - ANSWER -1) it makes many copies from a
DNA strand
2) it selectively amplifies only the parts of the human genome (the
DNA) that is under examination
enzyme used in PCR - ANSWER -Taq polymerase
Why is Taq Polymerase an ideal enzyme for PCR? - ANSWER -it is stable
enough to withstand dramatic temperature changes needed for the
DNA to be replicated a number of times
