List of top Biology Questions

Perigynous flowers are found in
In angiosperms, microsporogenesis and mega- sporogenesis
Roots play insignificant role in absorption of water in
In photosynthesis, the light independent reactions take place at
The cutting of DNA at specific locations became possible with the discovery of
A population will not exist in Hardy-Weinberg equilibrium if
Which vector can clone a small fragment of DNA ?
A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete ofthe same species, has
Arrange the following events of meiosis in a proper sequence and select the correct option. I. Terminalisation II. Crossing over III. Synapsis IV. Disjunction of genome
Which of the following does not favour the formation of large quantities of dilute urine?
Destruction of the anterior horn cells of the spinal cord would result in loss of
Human urine is usually acidic because
Cellular organelles with membranes are
A pleiotropic gene
Capacitation refers to changes in the
Which of the following is not a sexually transmitted disease?
The introduction of T-DNA into plants involves
Ectopic pregnancies are referred to as
Which of the following had the smallest brain capacity?
Erythropoiesis starts in
A gene showing codominance has
The term 'linkage' was coined by
Multiple alleles are present
In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree.
In human females, meiosis-II is not completed until