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Designing Primers

Submitted by Prerak Juthani  The human genome is 3 x10^9 base pairs long. How long should you design a primer such that it anneals only ONCE to a particular sequence in the entire genome? (Calculator use is permitted)  a) 13 nucleotidesb) 16 nucleotides c) 30 nucleotide d) 40 nucleotidese) 43 nucleotide  The correct answer is… The...

Ubiquinin Ligases 

Question Submitted by Prerak Juthani  If you look at the process above, it demonstrates the process whereby ubiquinin is transferred from E1 to E2 to E3 (all of which are ubiquinin ligases), which eventually transfers it onto a target protein. The ubiquinin is added to lysin residues on the target protein, and the more...

Biology Question #7: Gametic Instability 

Submitted by Prerak Juthani  Why are gametes much more prone to mutation than somatic cells? a) They only have one set chromosome, and thus, they are unstable. b) They only have one set of chromosomes, so they are more likely to express recessive deleterious alleles. c) They only have one set of chromosomes, and...

Biology Question #8: Mathematical Genetics 

Submitted by Prerak Juthani How many different alleles are there for a gene that is 1500 base pairs long such that each allele differs every other by exactly 1 base pair? a) 4^1500b) 1500 x 4 c) 1500^4d) 60,000e) None of the above  And the answer is… B.In this case, there are 1500 base pairs...