MHT CET biology Model Test 02 — MHT - CET STD 12 Science — Question

Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the centre. The intervening space is filled with oil of refractive index 1. 7. The focal length of the combination is ______.

The moment of the couple is independent of ______

The following identifies the major features of technology that differentiate modem biotechnology from classical biotechnology.

i. Capability of science to change the genetic material for getting new specific products through rDNA technology, polymerase chain reaction (PCR), microarrays, cell culture and fusion, and bioprocessing.

ii. Ownership of technology and its sociopolitical impact.

iii. Modem biotechnology makes use of only fermentation technology.

iv. Classical biotechnology relies only on principles of plant and animal tissue culture.

Antibiotics used in the control of infectious diseases are ____________.

The mean and S.D. of the scores of 100 candidates were found to be 80 and 15 respectively. Later, it was discovered that a score of 50 was wrongly read as 40. The correct mean and S.D. respectively are ______

Which among the following amino acids has the lowest molecular mass?

Which of the following is a Stephen reaction?