GM plant/crop are:
(A) Rich in vitamins
(B) Pest resistant
(C) Prone to post harvest loss
(D) More tolerant to drought
Choose the correct answer from the options given below:

If sewage water is added to river water, it will:

Zoological parks, botanical gardens and wildlife safari parks are examples of:

Read the given paragraph and answer the question:
Humans have 23 pairs of chromosomes. 22 pairs are exactly same in both males and females; these are the autosomes. A pair of X-chromosome are present in the female, whereas the presence of an X and Y chromosome are determinant of the male characteristic.
A number of disorders in human beings have been found to be associated with the inheritance of changed or altered genes or chromosomes. Broadly, genetic disorder may be grouped into two categories-Mendelian disorders and Chromosomal disorders
A colour blind man marries a carrier woman. Choose the possible progeny outcome.

Read the passage carefully and give the answers to the question :
India was amongst the first countries in the world to initiate action plans and programmes at a national level to attain total reproductive health as a social goal.
These programmes called 'family planning' were initiated in 1951 and were periodically assessed over the past decades. Improved programmes covering wider reproduction-related areas are currently in operation. Creating awareness among the people about various reproduction-related aspects and providing facilities and support for building up a reproductively healthy society are the major tasks under these programmes.
Match Column I with Column II

Column I	Column II
(A) ZIFT	(I) Sperm injected into ovum
(B) ICSI	(II) Embryo in uterus
(C) IUI	(III) Embryo in fallopian tube
(D) IUT	(IV) Semen in uterus

Choose the correct answer from the options given below

Read the following passage carefully and answer the given questions.
Biofertilisers
Biofertilisers are organisms that enrich the nutrient quality of the soil and their main sources are bacteria, fungi and cyanobacteria. You have studied about the nodules on the roots of leguminous plants formed by the symbiotic association of Rhizobium. These bacteria can fix atmospheric nitrogen into organic forms. Other bacteria can also fix atmospheric nitrogen while free-living in the soil (examples Azospirillum and Azotobacter). Fungi are also known to form symbiotic associations with plants (mycorrhiza). Many members of the genus Glomus form mycorrhiza. Plants having such associations show other benefits also, such as resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development. Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial environments many of which can fix atmospheric nitrogen, e.g. Anabaena, Nostoc, Oscillatoria, etc. In paddy fields, cyanobacteria serve as an important biofertiliser. Blue green algae also add organic matter in to the soil and increase its fertility. Currently, in our country, a number of biofertilisers are available commercially in the market and farmers use these regularly in their fields to replenish soil nutrients and to reduce dependence on chemical fertilisers.
Choose the free living, nitrogen-fixing bacteria from the following.

Drosophila melanogaster was chosen by Thomas Hunt Morgan for the experimental verification of the chromosomal theory of inheritance because of its:
(A) Many types of hereditary variations visible under a low-powered microscope
(B) Large number of progeny in single mating
(C) Clear differentiation of sexes
(D) Life cycle of about 4 weeks
Choose the correct answer from the options given below:

The pollination which involves the transfer of pollen grain from the anther
to the stigma of another flower of the same plant is known as-

A compound is formed by two elements X and Y.
Atoms of 'Y' make ccp and those of element 'X' occupy tetrahedral voids.
The formula of the compound is:

Match List-I with List-II

List-I (Physical quantity)	List-II (Unit)
(A) Electric flux	(I) V m−1
(B) Polarisation	(II) kg m−1⁢ s−2
(C) Electric field	(III) V m
(D) Energy density	(IV) C m−2

Choose the correct answer from the options given below:

Which of the following argument supports the conservation of biodiversity
from the below statement:
"Waking up to a Bulbul's song in the morning"

Read the following passage carefully and answer the given questions.
Biofertilisers
Biofertilisers are organisms that enrich the nutrient quality of the soil and their main sources are bacteria, fungi and cyanobacteria. You have studied about the nodules on the roots of leguminous plants formed by the symbiotic association of Rhizobium. These bacteria can fix atmospheric nitrogen into organic forms. Other bacteria can also fix atmospheric nitrogen while free-living in the soil (examples Azospirillum and Azotobacter). Fungi are also known to form symbiotic associations with plants (mycorrhiza). Many members of the genus Glomus form mycorrhiza. Plants having such associations show other benefits also, such as resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development. Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial environments many of which can fix atmospheric nitrogen, e.g. Anabaena, Nostoc, Oscillatoria, etc. In paddy fields, cyanobacteria serve as an important biofertiliser. Blue green algae also add organic matter in to the soil and increase its fertility. Currently, in our country, a number of biofertilisers are available commercially in the market and farmers use these regularly in their fields to replenish soil nutrients and to reduce dependence on chemical fertilisers.
Which one of the followings is not a symbiotic microbe?

If the slope of the tangent to the curve \(y=y(x)\) at any point \((x, y)\) is \(\frac{2 x}{y^2}\) and the curve passes through the point \(\left(\frac{1}{\sqrt{3}}, 1\right)\), then the equation of the curve is :