From a pack of 52 cards two are drawn at random. The probability that one is a king and the other a queen is

#Question id: 10885

#Unit 10. Ecological Principles

In a field experiment, autotrophs are provided a 14C-labelled carbon compound for photosynthesis. Radioactivity (14C) levels were then monitored at regular intervals in all the trophic levels. In which ecosystem is the radioactivity likely to be detected in longer time at the higher trophic level?

#Question id: 12822

#General Aptitude

#Question id: 3557

#Unit 8. Inheritance Biology

What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants?

#Question id: 5281

#Unit 8. Inheritance Biology

In the mating Hfr Strs met+ his+ leu+ trp+ Ala+   X F- Strres met- his- leu- trp- Ala-. At regular interval time, the mating cells are interrupted and the cell suspensions plated on four different growth media with streptomycin. The amino acids in the growth media and the number of colonies observed on each are as follows:

What is the order of transfer of the genes?

#Question id: 11117

#Unit 7. System Physiology – Animal

The molecule that prevents lung collapse by lowering the surface tension of the water film lining each alveolar sac is called: