List of top Biology Questions

The antibody produced in allergic reaction is:
Consider the following statements: Hardy Weinberg equilibrium is maintained in a population where (i) random mating is there (ii) there is no natural selection (iii) a population may gain or loose alleles Which of the statements given above is/are correct?
The contraceptive "SAHELI"
Which one of the following is NOT true about Salvia flower ?
In one nucleosome, which one of the following histone molecule is NOT double ?
Snapdragon is an example of _________ gene interaction.
Lac is used in the manufacture of following products EXCEPT
Stomatal movement is not affected by
The 'eyes' of potato are located at the _________
Many ribosomes may associate with a single $mRNA$ to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as
Identify the INCORRECT statement regarding Bt Cotton.
Lacteals absorb ________
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
The stage during which separation of the paired homologous chromosomes begins is
Sweet potato is a modified
In the given diagram of mammalian bone, X indicates
The amnion of mammalian embryo is derived from
Pneumatophores occur in
Oxidative phosphorylation in eukaryotes occurs during ________.
Double fertilization in angiosperms was first discovered by S.G. Nawaschin in ________ plants.
Each testicular lobule contains _______ convoluted seminiferous tubules
In Mirabilis jalapa, when red and white varieties are crossed, the hybrid obtained will be ________ pink.
In angiosperms, the fusion of male gamete with the secondary nucleus is considered as "Second fertilization" because
Secondary xylem and phloem in dicot stem are produced by
The experimental proof for semiconservative replication of DNA was first shown in a