List of top Biology Questions

Genetically modified plants have been useful in:
Transgenic animals are used to understand the contribution of genes in the development of diseases such as:
If a double-stranded DNA has 15% of adenine, find out the percent of cytosine in the DNA?
Humification leads to:
Arrange the given products formed during sewage treatment in correct sequence:
(A) Biogas
(B) Activated sludge
(C) Flocs
(D) Primary sludge
Wildlife safari parks are example of-
A small standing crop of phytoplankton supports a large standing crop of zooplankton. This can be correctly represented by:
The first isolated restriction endonuclease was:
Thorn of Bougainvillea and tendril of Cucurbita are:
Arrange the following groups of plants according to their appearance on earth.
(A) Angiosperms
(B) Seed ferns
(C) Rhynia type plants
(D) Psilophyton
If a man is eating fish as his food, which trophic level is occupied by him in the food chain?
Which of the following statements are true with reference to homology or homologous organs?
(A) Homology indicates common ancestry.
(B) Whale and Cheetah share similarities in the pattern of the bones of the forelimbs.
(C) Vertebrate heart is an example of homologous organs.
(D) Thorn of Bougainvillea and tendrils of cucurbita represent homology.
Baculoviruses are pathogens that attack:
The number of individuals in the reproductive age group is more than the number of individuals in the pre-reproductive age group, the shape of its age pyramid would reflect the growth status of the population as:
Which of the following steps are related to polymerase chain reaction (PCR)?
(A) Extension
(B) Annealing
(C) Propagation
(D) Denaturation
Arrange the following geological periods in their occurrence from latest to oldest order.
(A) Triassic
(B) Carboniferous
(C) Tertiary
(D) Jurassic
Which of the following is incorrect with reference to drug abuse?
Arrange the given steps involved in gel electrophoresis used for separation of DNA fragments?
(A) Exposure to UV light
(B) Staining with ethidium bromide
(C) Moving of DNA fragments towards anode
(D) Elution
EcoRI, a significant tool in rDNA technology is -
Which of the following disorders are the results of aneuploidy? (A) Haemophilia
(B) Down’s Syndrome
(C) Thalassemia
(D) Turner’s Syndrome
Which one of the following options will express intermediate skin colour in an individual?
Which one of the following is not associated with the process of transcription in bacteria?
The process of copying genetic information from one strand of DNA into RNA is termed as -
Which type of innate immunity is exhibited by interferons secreted by virus-infected cells to protect non-infected cells?
Which of the following are not involved in intra uterine devices? (A) Lippes Loop
(B) LNG-20
(C) Saheli
(D) Implants