A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. Some time later, she finds that the introduced strand separates into single-stranded RNAs, one of which is degraded. What does this enable the remaining strand to do?

#Question id: 365

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

Water is a polar molecule: the oxygen atom with its unshared electrons carries a partial negative charge (δ−) of ___________, and the hydrogen atoms each carry a partial positive charge (δ+) of __________, where e is the charge of the electron.

#Question id: 435

#SCPH05 I Biotechnology

What defines a near-equilibrium reaction?

#Question id: 5082

#SCPH06 I Botany

 In which of the following organisms does holoblastic cleavage typically occur?

I) sea urchins

II) humans

III) birds

IV) fish

#Question id: 4819

#SCPH12 I Genetics

Plant with genotype AB/ab is test cross, two genes are linked are 10 map units apart. What proportion of progeny will have the genotype aabb?

#Question id: 11275

#SCPH06 I Botany

Consumption efficiency is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level which of the following are correct statement ?

A.Consumption efficiencies higher in  forests than grassland

B-In aquatic ecosystems consuption efficiencies of hervivore are greater than terrestrial hervivore

C- Consumption efficiencies for carnivores are typically higher than those of herbivores

D-Primary production consumption is increased where it is high in nutrients such as nitrogen and phosphorus