Cyclobutane pyrimidine dimers are formed by -------------from adjacent pyrimidines on one strand by cyclization of the double-bonded C5 and C6carbon atoms of each base to give a cyclobutane ring.

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#Question id: 20052

#SCPH01 Biochemistry

HCG-kit is based on the phenomenon of 

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#Question id: 3054

#SCPH06 I Botany

A pure culture in exponential growth phase has a bacterial concentration of 6.4 x 10^8 cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell concentration 8.0 x 10^7 cells/ml?

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#Question id: 8950

#SCPH28 | Zoology

You have before you a living organism, which you examine carefully. Which of the following should convince you that the organism is acoelomate?

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#Question id: 2065

#I Life Science/ Life Sciences Group – I-V

Which of the following are least likely to diffuse through the phospholipid bilayer of a cell membrane?

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#Question id: 4765

#SCPH12 I Genetics

The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?