List of practice Questions

A lift of mass $m$ is connected to a rope which is moving upward with maximum acceleration $a$. For maximum safe stress, the elastic limit of the rope, is $T$. The minimum diameter of the rope is (g = gravitational acceleration)

The pH of nutrient medium in plant tissue culture is adjusted between _____

If $3.01 \times 10^{20}$ molecules are removed from $98 \, mg$ of $H_2SO_4$, then number of moles of $H_2SO_4$ left are

The function $ f (x) = x^2 + 2x - 5$ is strictly increasing in the interval

If a matrix $A$ is both symmetric and skew symmetric, then

A decrease in blood pressure/volume will not cause the release of

Homozygous purelines in cattle can be obtained by

The vascular cambium normally gives rise to

Among the following characters, which one was not considered by Mendel in his experiments on pea?

Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:

GnRH, a hypothalamic hormone, needed in reproduction, acts on

In Bougainvillea thorns are the modifications of

Which one from those given below is the period for Mendel's hybridization experiments?

Good vision depends on adequate intake of carotene rich food.
Select the best option from the following statements:

1. Vitamin A derivatives are formed from carotene .
2. The photopigments are embedded in the membrane discs of the inner segment.
3. Retinal is a derivative of vitamin A.
4. Retinal is a light absorbing part of all the visual photopigments.

Which one of the following statements is not valid for aerosols?

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

Which of the following options gives the correct sequence of events during mitosis?

Which one of the following statements is correct, with reference to enzymes?

During DNA replication, Okazaki fragments are used to elongate

Which of the following are not polymeric?

The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?

Attractants and rewards are required for

Which of the following is made up of dead cells?

Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?