If mayflies lay eggs on roads instead of in water, this behavior could involve which of the following? 

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#Question id: 3880

#3. Fundamental Processes

Which one of the following properties of the L-19 IVS ribozyme is not shared with enzymes that are purely protein?

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#Question id: 5755

#8. Inheritance Biology

A researcher studying bacterial toxin predicts that a lysine within the toxin is important for binding it’s target cell.  She used site-directed mutagenesis to change a codon for lysine (AAA) to one for asparagine (AAU).  However, the mutant toxin still binds to its target cell just as well as the wild-type toxin bound and appears to have no other changes. This type of mutation is probably

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#Question id: 23916

#Aptitude

Assertion (A): Bt cotton is a transgenic crop which has been introduced in India, but is being opposed on environmental grounds. Reason (R): CrylAc protein in Bt cotton has been found to be toxic and allergenic to human beings.

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#Question id: 21244

#7. System Physiology – Animal

Which of the following parts of the eye has the greatest concentration of rods?

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#Question id: 112

#1. Molecules and their Interaction Relevant to Biology

The major groups of lipids can be separated by silicic acid column chromatography by eluting with