Which part of the human kidney filters blood under high pressure? MCQ with Answer and Explanation

Explanation:
Molecular cloning involves inserting a DNA fragment into a vector (e.g., plasmid), which is then taken up by host cells (e.g., E. coli). As the bacteria replicate, they produce many copies of the inserted DNA, creating a gene library. PCR amplifies without vectors, sequencing reads bases, microarrays analyze expression.

Explanation:
Alcoholic fermentation in yeast produces ethanol and CO₂. Fermentation is anaerobic, yields 2 ATP, and in muscles produces lactic acid.

Explanation:
Darwin traveled as a naturalist on the HMS Beagle (1831-1836) and made extensive observations, especially in the Galápagos Islands. His observations of finches' beak adaptations led to the concept of natural selection as the mechanism for evolution. 'On the Origin of Species' (1859) laid out his theory. HMS Challenger was an oceanographic expedition. HMS Endeavour was Captain Cook's ship.