Match List-I with List-II

List-I  (Geological periods)	List-II (Plant forms)
(A) Cretaceous	(I) Seed ferns
(B) Jurassic	(II) Progymnosperms
(C) Carboniferous	(III) Sphenopsids
(D) Devonian	(IV) Conifers

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Which of the following serve as an important biofertiliser in paddy field?

C and Z in the species-area relationship log S = log C + Z log A represents:

According to the IUCN, the total number of plant and animal species is about :-

The chromosomal disorders are caused due to absence, excess or abnormal arrangement of one or more chromosomes. Failure of segregation of chromatids during cell division results in the gain or loss of chromosome(s), called aneuploidy.
Which of the following statements are correct with respect to the humans suffering from the disorder?
(A) One in every 800 live births shows this karyotype
(B) The affected individual has 45 chromosomes.
(C) Non-disjunction of chromosomes at the time of gamete formation causes this disorder.
(D) In this disorder, individual has 45 autosomes
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Which of the following is an example of 'Ex-situ Conservation' of threatened animals and plants?

Which one of the following diseases is non-infectious?

Identify the correct statements.
(A) Neutrons penetrate the nucleus more readily as compared to protons.
(B) It is easier to release an orbital electron, but quite difficult to release a nucleon.
(C) Nuclear density is not the same for all nuclei.
(D) The radius of the nucleus is directly proportional to the cube root of the mass number.
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If \(a, b\) and \(c\) are all different from zero and \(\left|\begin{array}{ccc}1+a & 1 & 1 \\ 1 & 1+b & 1 \\ 1 & 1 & 1+c\end{array}\right|=0\), then the value of \(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}\) is :

The process of breeding crops for higher level of proteins, vitamins and/or oil content is called

The work done in moving a point charge, \(2 \mu C\) between two points between which the potential difference is 50 V is:

In eukaryotes, the regulation could be exerted at -
(A) Transcriptional level (formation of primary transcript)
(B) Processing level (regulation of splicing)
(C) Transport of mRNA from nucleus to the cytoplasm
(D) Translational level

If \(y=a x^2+b x\) has minima at \(x=2\) and the minimum value is -12 , then which of the following are correct?
(A) \(a=3\)
(B) \(a=-3\)
(C) \(b=12\)
(D) \(b=-12\)
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