The stages of gibberellin biosynthesis takes place various organelles and completed in various forms such as;

a) In the endoplasmic  reticulum GA12 is converted to GA53 by hydroxylation at C-13

b) In the cytosol GA12 is converted via 13-hydroxylation pathway into GA9 and further converted into GA4 by 3-β-Hydroxylation

c) In the cytosol GA53 is converted via 13-Hydroxylation pathway into GA20 and further converted into GA1 by 3-β-Hydroxylation

d) Hydroxylation at C-2 then converts GA4 and GA1 to the inactive forms GA34 and GA8, respectively

Which one of the following given combination from the above statements is true?

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#Question id: 13064

#Unit 13. Methods in Biology

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

Which of the following techniques doesn’t involve use of a secondary antibody?

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#Question id: 15748

#Unit 5. Developmental Biology

In Drosophila, if there is four X chromosome and three sets of autosomes then the fly is:

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#Question id: 4485

#Unit 3. Fundamental Processes

In multicellular organisms, regulatory sequences can spread thousands of nucleotides from the promoter—both upstream and downstream—and can be made up of tens of regulator binding sites. Often, these binding sites are grouped in units called_?

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#Question id: 3459

#Unit 11. Evolution and Behavior

A vampire bat sharing blood with another bat that is not its kin is an example of ________.

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#Question id: 29514

#Unit 6. System Physiology – Plant

DIBOA & DIMBOA are