List of top Biology Questions

$PAE$ stands for
Microbe used as clot buster during myocardial infraction
Yeast is used for commercial production of
$70 \,S $ ribosomes occur in
Which one of the following kinds of animals are triploblastic?
Vasa efferentia are muscular tubes, each of which connects
In cockroach, the ootheca is formed by the secretion of
If a fresh water protozoan is placed in marine water, then what change will be observed in its contractile vacuole?
G-6-P-D deficiency inheritance is an example of ______ inheritance.
First clinical gene therapy was performed to prevent development of
Deficiency of thyroxine in an adult causes a disease characterised by low BMR, low body temperature, scaly skin etc. The disease is
All of the following are found in seminiferous tubules except
Aestivation of petals in the flower of cotton is correctly shown in
When concentration of carbon dioxide increases in blood, respiration becomes
Brunner?s glands are found in
Which of these is secreted by duodenum?
Enteropeptidase present in ?succus entericus? converts _______.
Which of the following elements is relatively immobile in plants?
In humans, what is the ratio of number of gametes produced from one male primary sex cell to the number of gametes produced from one female primary sex cell ?
Seed coat is not thin, membranous in
Age of a tree can be estimated by
A pregnant female delivers a baby who suffers from stunted growth, mental retardation low intelligence quotient and abnormal skin. This is the result of
Advantage of cleistogamy is
Which of the following statements is not true of two genes that show 50% recombination frequency ?
Infection of Ascaris usually occurs by