Oral contraceptive pills used by females, function through:

Incorrectly functioning globin is characteristic of__________

Which of the following is not used to draw the ecological pyramid?

Which one of the following genotypes represents a similar skin color?

Arrange the given structures in correct sequence of spermatogenesis?
(A) Spermatozoa
(B) Secondary spermatocytes
(C) Spermatogonia
(D) Spermatids
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Read the following and select the set of correct statements.
(A) Euchromatin is transcriptionally inactive
(B) Heterochromatin is more densely packed
(C) Heterochromatin is loosely packed
(D) Euchromatin is transcriptionally active
(E) Euchromatin stains lighter

Which of the following is the correct expression of the "central dogma" ?

Read the passage carefully and answer the given questions.
Recombinant DNA Technology
Asexual reproduction preserves the genetic information, while sexual reproduction permits variation. Traditional hybridization procedures used in plants and animals breeding very often lead to inclusion and multiplication of undesirable genes along with the desired genes. The techniques of genetic engineering, which include creation of recombinant DNA, use of gene cloning and gene transfer, overcome this limitation and allow us to isolate and introduce only one or a set of desirable genes without introducing genes into the target organism.
What is the purpose of using a gene promoter in recombinant DNA technology?

Match List - I with List - II.

LIST I (Disease)	LIST II (Causal organism)
A. Ascariasis	I. Salmonella typhi
B. Amoebiasis	II. Plasmodium vivax
C. Typhoid	III. Entamoeba histolytica
D. Malaria	IV. Ascaris

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If h is the Planck's constant, then the momentum of the photon having frequency \(v\) is represented by

Which of the given values of x and y make the following pair of matrices equal?
\(\left[\begin{array}{cc}3 x-2 & y-x \\ 20 & -2\end{array}\right]\) and \(\left[\begin{array}{cc}4 & 2 \\ 14 x-8 & y-6\end{array}\right]\)

The distance between the line \(\vec{r}=2 \hat{i}+2 \hat{j}-3 \hat{k}+\lambda(\hat{i}+\hat{j}+4 \hat{k})\) and the plane \(\vec{r} \cdot(\hat{i}-5 \hat{j}+\hat{k})-4=0\) is:

Match List-l with List-II

List-l (Scientists)	List-II (Discoveries)
(A) Frederick Griffith	(I) Genetic Code
(B) Francois Jacob and Jacque Monad	(II) Semi-conservative mode of DNA replication
(C) Har Gobind Khorana	(III) Transformation
(D) Meselson and Stahl	(IV) Lac operon

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