At 15-30°N, air masses formed over the Pacific Ocean are moved by prevailing westerlies, where they encounter extensive north-south mountain ranges. Which statement best describes the outcome of this encounter between a landform and an air mass?

#Question id: 5130

#SCPH01 Biochemistry

Regulation by gradients of paracrine factor concentration was elegantly demonstrated by the specification of different mesodermal cell types in the frog Xenopus laevis by activin, a paracrine factor of the TGF-beta family. Which of the following observations are correct from this graph?

#Question id: 10527

#SCPH06 I Botany

Based on their feeding behaviors, three major types of insect herbivores can be distinguished, which evades the constitutive defense;

A) Phloem feeders                                                                    i) caterpillars, grasshoppers, and beetles

B) Cell-content feeders                                                            ii) aphids and whiteflies

C) Chewing insects                                                                    iii) mites and thrips

Correctly match the feeding behaviour with its insects;

#Question id: 560

#SCPH01 Biochemistry

Vmax for an enzyme-catalyzed reaction:

#Question id: 18218

#SCPH05 I Biotechnology

#Question id: 752

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

The A260/A280 ratio of a double-stranded DNA sample can be used to assess its purity. The value for the pure DNA is ----------------