List of top Biology Questions

The shade tolerant plants are known as
The longest bone of the human body is
The enzyme which converts starch into maltose is
$ 2n=16 $ in a primary spermatocyte, which is in metaphase of first meiotic division: What shall be the total number of chromatids in each of the secondary spermatocyte?
Streptomycin is obtained from
Satiety centres of brain is present on
Rh factor is present in
Quantasomes are present in
Phenylketonuria is an autosomal recessive disorder located on chromosome
Ornithorhynchus is an example of
One haemoglobin carries how many molecules of $O_2$?
Muscular tetany can be caused by deficiency of
Most accepted theory for ascent of sap is
Malpighian tubules are
Jumping genes in maize were discovered by
During an allergic reaction, the binding of antigens to $IgE$ antibodies initiates a response, in which chemicals cause the dilation of blood vessels and a host of other physiological changes. Such chemicals are
Pollen mother cells (PMCs) are the first male gametophytic cells. Each PMC gives rise to two pollens.
Dark reaction occurs only at night in the stroma of chloroplast. CO fixation occurs only during C cycle.
Most of the economically important fibre yielding plants belong to family
Scientific name of sunflower is
Which of the following is a total root parasite ?
Which of the following is not a reflex action?
Which of the following postulates is related with Neo-Darwinism?
Which of the following tissues consist of living cells?
Which one of the following is not an insectivorous plant?