List of practice Questions

A 22 year old girl is about to face interview. She is restless, is sweating and her heart beats have increased. These symptoms are due to increased secretion mainly of _________

Water present in the form of hydrated oxides of silicon and aluminium in soil is called ________ water.

With reference to agricultural crop, which of the following are considered as critical elements?

Lemurs are found in _________

Match the correct phenotype and genotype of {Drosophila for their wing sizes. Phenotype Genotype
(i) Normal wings a) vg$^{no}$
(ii) Nicked wings b) vg
(iii) Notched wings c) Vg$^{+}$
(iv) Strap wings d) vg$^{st}$
(v) Vestigial wing e) vg$^{ni}$

Cretaceous, Jurassic and Triassic periods are included in the ________ era.

Gargi constructed m-RNA in laboratory. Which of the following codons will she have as initiating and terminating the m-RNA respectively?

With reference to human beings, find out the mis-match pair.

Which of the following is NOT involved in glycolysis?

In a population of an organism, allele ‘A’ has the frequency of 0.7 and allele ‘a’ has the frequency of 0.3. What is the frequency of homozygous dominant genotype?

Mortality of a region is assessed by ________ of individuals per unit area per unit time.

In ornithophilous plants, flowers lack _________

Match the process in Column–I with its explanation in Column–II and select the correct option.
Column – I Column – II
(i) Symport a) shrinking of protoplasm in a plant cell when placed in hypertonic solution
(ii) Facilitated diffusion b) transport of two types of molecules in same direction across cell membrane
(iii) Antiport c) selective transport of molecules across the membrane through proteins
(iv) Plasmolysis d) transport of two types of molecules in opposite direction across cell membrane

{Hydra and yeast reproduce asexually by _________

Taq polymerase isolated from {Thermus aquaticus can withstand temperature up to _________

Internal valves are present in the _________

Select the INCORRECT statement.

Excessive haemolysis of R.B.C.s with over production of bilirubin and abnormal function of ________ is observed in jaundice.

Empirical formula of chlorophyll–a is _________

Select the correct statement.

Breasts are the modified ________ glands.

Proximal convoluted tubule differs from distal convoluted tubule being lined by _________

Which one of the following is cause of inflammation of cornea, called snow blindness cataract?

Gaurav visited a zoo where he saw tiger, lion, camel, musk deer, red fox, one-horned rhinoceros, great Indian bustard and peacock. He wanted to report the endangered species from the above list. The number will be _________

Which one of the following is a heteropolysaccharide?