List of top Biology Questions

A toxic substance, responsible for the chills and high fever recurring every three to four days in malarial fever, is
A threatened species category includes
A tobacco plant heterozygous for a recessive character is self-pollinated and $1200$ seeds are subsequently germinated. Flow many seedlings would have the parental genotype ?
A somatic hybrid between potato and tomato is named as
A sex gland which contributes fluid containing sugar fructose that provides spermatozoa energy for swimming and hormone prostaglandins that stimulate contractions in the female reproductive tract to aid sperm-ovum interaction is
A Sarcomere in the myofibrils of muscle is found in between
A recessive allele is expressed in
A protoxin is
A person with antigen ?A? in RBC and antibodies ?b? in the plasma belongs to the blood group
?African sleeping sickness? is caused by
An anaerobic nitrogen fixing bacterium is
The chemical is secreted by legume root hairs to attract bacteria
Dieback and exanthema occur in deficiency of mineral
Excess of manganese is toxic due to
Biological nitrogen fixation was discovered by
Which one of the following is an endangered plant species of India ?
The extinction of passenger pigeon was due to
Which of the following group of plants exhibit more speices diversity ?
Number of Biosphere Reserves of India in 2012 was
A plant cell without cell wall is called
Lion Tailed Macaque (Macaca silenus) is
Great Indian Bustard is threatened species because it is
IBWL (Indian Board of Wildlife) was established in
A plant cell placed in pure water will
A plant bearing unisexual as well as bisexual flowers is