If natural selection in a particular environment favored genetic systems that permitted the production of daughter ʺcellsʺ that were genetically dissimilar from the mother ʺcells,ʺ then one should expect selection for

I. polynucleotide polymerase with low mismatch error rates.

II. polynucleotide polymerases without proofreading capability.

III. batteries of efficient polynucleotide repair enzymes.

IV. polynucleotide polymerases with proofreading capability.

V. polynucleotide polymerases with high mismatch error rates.

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#Question id: 19108

#Unit 8. Inheritance Biology

Assume that mating is random. Colorblindness is an X-linked recessive trait that is found in about 5 percent of males. What fraction of females are heterozygous carriers of the colorblindness allele?

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#Question id: 5259

#Unit 8. Inheritance Biology

Genetic variation in bacterial populations cannot result from

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#Question id: 28464

#Unit 5. Developmental Biology

Anterior neural plate produce the next signals, that promotes the synthesis of the Pax6 transcription factor, Expression of Pax6 protein leads to which fate?

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#Question id: 18920

#Unit 13. Methods in Biology

Which selection system is used in a yeast plasmid recombinant?

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#Question id: 11859

#General Aptitude

Six bells commence tolling together and toll at intervals of 2,4,6,8,10,and 12 seconds respectively . In 30 minutes , how many times do they toll together ?