Short Answer TypeA geneticist interested in studying variations and patterns of inheritance in living beings prefers to choose organisms for experiments with shorter life cycle. Provide a reason.
State a reason for the increased population of dark coloured moths coinciding with the loss of lichens (on tree barks) during industrialization period in England.
Industrialization led to darkening of the tree trunks due to deposition of smoke and soot and increase in pollution. The dark colored moths were not attacked by the predators as they camouflaged against the dark bark of the trees while the white coloured moths were picked out by the predators. The lichen population also decreased due to the increase in pollution.
Indiscriminate diagnostic practices using X-rays etc., should be avoided. Give one reason.
After a brief medical examination a healthy couple came to know that both of them are unable to produce functional gametes and should look for an ‘ART’ (Assisted Reproductive Technique). Name the ‘ART’ and the procedure involved that you can suggest to them to help them bear a child.
Mention a product of human welfare obtained with the help of each one of the following microbes:
(a) LAB
(b) Saccharomyces cerevisiae
(c) Propionibacterium sharmanii
(d) Aspergillus niger
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