Given below are some stages of human evolution. Arrange them in correct sequence (Past to Recent)
(A) Homo habilis
(B) Homo sapiens
(C) Homo neanderthalensis
(D) Homo erectus
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Which one of the following diseases is not the sexually transmitted infections?

Match List-I with List-II

List-I ( Terms)	List-II (Examples/Explanations)
(A) Homology	(I) Forelimbs of mammals
(B) Analogy	(II) Wings of birds and butterfly
(C) Convergent evolution	(III) Common habitat and function
(D) Divergent evolution	(IV) Common ancestry of structure

Choose the correct answer from the options given below:

Select the statements which hold true for transgenic plants.
A. They are produced by arresting spindle formation during cell division.
B. They are formed by inducing gene mutation.
C. They are produced by introducing foreign gene through rDNA technology.
D. Bt cotton is a transgenic plant.
Choose the correct answer from the options given below:

The puffed-up appearance of dough is due to the production of :

The active chemical drug reserpine is obtained from:

EcoRl, a significant tool in rDNA technology is -

A uniform electric field of 16 N/C exists in the vertically downward direction. The increase in electric potential as one goes up through a height of 75 cm.

If \(x = at^2, y = 2at\) then \(\frac{d^2y}{dx^2} =\)

Read the paragraph given below and answer the question.
Sutton and Boveri argued that the pairing and separation of a pair of chromosomes would lead to the segregation of a pair of factors they carried. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance. Following this synthesis of ideas, experimental verification of the chromosomal theory of inheritance by Thomas Hunt Morgan and his colleagues, led to discovering the basis for the variation that sexual reproduction produced. Morgan worked with the tiny fruit files, which were found very suitable for such studies. They could be grown on simple synthetic medium in the laboratory. They complete their life cycle in a short span of time and a single mating could produce a large number of progeny flies. Also, there was a clear differentiation of the sexes - the male and female flies are easily distinguishable. Also, it has many types of hereditary variations that can be seen with low power microscopes.
Drosophila melanogaster complete their life cycle in

A charged particle enters a uniform magnetic field at an angle of \(45 ^\circ\) with the field. The path along which the particle moves in the field will be

0.04 F of charge will liberate how much of oxygen gas (at STP) from acidified water?

Which one of the following is an example of co-evolution?