List of practice Questions

If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
Zygotic meiosis is characteristic of
Which of the following is correctly matched for the product produced by them?
Which of the following RNAs should be most abundant in animal cell?
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
The semi-major axis of the orbit of Saturn is approximately nine times that of Earth. The time period of revolution of Saturn is approximately equal to
If vector $\vec{r}$ with d.c.s. $l, m, n$ is equally inclined to the co-ordinate axes, then the total number of such vectors is
The value of $\cos^{-1} \left(\cot\left(\frac{\pi}{2}\right)\right) + \cos^{-1} \left(\sin\left(\frac{2\pi}{3}\right)\right) $ is
The equation of the plane through $(-1, 1 , 2 ) $ whose normal makes equal acute angles with co-ordinate axes is
A baby boy aged two years is admitted to play school and passes through a dental check - up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
A decrease in blood pressure / volume will not cause the release of :
Which cells of "Crypts of Lieberkuhn" secrete antibacterial lysozyme ?
Functional megaspore in an angiosperm develops into ?
Myelin sheath is produced by
Attractants and rewards are required for
Receptor sites for neurotransmitters are present on :
Coconut fruit is a :
Adult human RBCs are enucleated. Which of the following statement(s) is/are most appropriate explanation for this feature ? (a) They do not need to reproduce (b) They are somatic cells (c) They do not metabolize (d) All their internal space is available for oxygen
Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?
The species, having bond angles of 120° is
If molality of the dilute solution is doubled, the value of molal depression constant (Kf) will be
Which one is the most acidic compound?
It is because of inability of ns2 electrons of the valence shell to participate in bonding that
Predict the correct intermediate and product in the following reaction.
Predict the correct intermediate and product in the following reaction
Which one of the following statements is not correct?