The function of the tapetum is:

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

Which of the following does not come under the category of assisted reproductive technologies?

'r' in exponential growth equation implies:

Thorn of Bougainvillea and tendril of Cucurbita are:

Arrange the following steps of Polymerase Chain Reaction in correct sequence.
A. Annealing of Primer
B. Denaturation of dsDNA
C. Extension of Primer
D. Amplification
Choose the correct answer from the options given below:

Which of the following is/are not the factor(s) causing the poor health of a person?
(A) Genetic disorders
(B) Infections
(C) Intake of unbalanced diet and un-clean water
(D) Having good eating habits
Choose the correct answer from the options given below:

\(\int_0^{\frac{\pi}{2}} \sqrt{1-\sin 2 x} d x\) is equal to :

Read the passage carefully and give the answers to the question :
Does the number of species in a community really matter to the functioning of the ecosystem? This is a question for which ecologists have not been able to give a definitive answer. For many decades, ecologists believed that communities with more species, generally, tend to be more stable than those with less species.
According to the International Union for Conservation of Nature and Natural Resources (IUCN) (2004), the total number of plant and animal species described so far is more than 1.5 million.
In 'rivet popper hypothesis' the 'rivet' signifies :

An alkyl halide with molecular formula \(\text{C}_5\text{H}_{11}\text{Br}\) on dehydrohalogenation give two isomeric alkenes X and Y with formula \(\text{C}_5\text{H}_{10}\). On reductive ozonolysis X and Y gave four compounds: \(\text{CH}_3\text{CHO}\) (ethanal), \(\text{CH}_3\text{COCH}_3\) (propanone), \((\text{CH}_3)_2\text{CHCHO}\) (3-methylbutanal), and \(\text{HCHO}\) (methanal). The alkyl halide is:

Match List-l with List-II

LIST-I	LIST-II
A. Planck's constant	(I) \(\left[M L^2 T^{-2}\right]\)
B. Work function	(II) \([L]\)
C. Stopping potential	(III) \(\left[M L^2 T^{-3} A^{-1}\right]\)
D. de Broglie wavelength	(IV) \(\left[M L^2 T^{-1}\right]\)

Choose the correct answer from the options given below :

If the difference of two unit vectors is again a unit vector, then the angle between them is ______________

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 disorder caused due to absence of one of the 'X' chromosome is -