List of top Botany Questions

If one species diverges to become two or more species, it is called:

Pick up the incorrect pair:

Hormone secreted by Sertoli cells of testes in human beings:

Cynognathus is a transitional form between:

A person is with short stature, small round head, furrowed tongue and partially open mouth and retarded physical, psychomotor and mental development. The person is said to be suffering from this genetic disorder:

In human genome, the highest number of genes are present in:

Dentalveolar joint is an example for:

These hormones are commonly called catecholamines:

Statement I: Right atrio ventricular aperture in human heart is guarded by a tricuspid valve.
Statement II: Blood plasma without fibrinogen and some other plasma proteins is called lymph.

These structures eliminate sterols, hydrocarbons, waxes etc. in human beings:

Study the following and pick up the correct statements: I. Superior colliculi are concerned with auditory function
II. Inferior colliculi are concerned with visual function
III. Pneumotaxic centre lies in pons varoli
IV. Thermoregulatory centre lies in the hypothalamus

In cockroach, thermoreceptor sensillae lie:

Assertion (A): Female human beings produce a high pitch voice.
Reason (R): The vocal cords in females are long and thick.

This rule states that with the increase of every 10° C, the rate of metabolic activities double:

In cockroach, egg case is secreted by these glands:

From the cells of intestinal villi, chylomicrons are transported into the:

Parasite responsible for hyperplasia in its host is:

These cells of cockroach contain symbiotic bacteria:

Identify the correct statements among the following: A. Probes are generally ss RNA or ss DNA
B. Probes are complementary to desired DNA
C. The efficiency of uptaking DNA fragments by bacteria decreases when they are treated with Ca\(^{2+}\) ions
D. Cloning vectors should have low molecular weight