Practice Biology GS Questions and Answers

• How many transmembrane alpha-helices are present in the G-protein coupled receptors?
• Altitude sickness is typically caused due to:
• A “wild type” organism that does not need any additional growth supplement is known as 
• Which of the statements given below are correct?  1. A person having blood group 'A' can donate blood to persons having blood group 'A' and blood group 'A...
• Which of the following parts are found in both plant and animal cells?
• The crew and passengers of a flying aircraft suffer generally from chronic obstructive pulmonary disease due to the effect of 
• Which action taking place in the digestive system of humans is similar to the emulsifying action of soaps on dirt?
• The presence of which bacteria is an indicator of water pollution?
• Which of the following parts helps in exchange of gases in plants?
• Analogous structures arise due to:
• Which of the following is NOT a factor affecting Hardy-Weinberg equilibrium?
• Which of the following statements regarding human evolution is incorrect? (A) Dryopithecus and Ramapithecus existed around 15 million years ago. (B) Homo h...
• How many histone proteins are present in a nucleosome core?
• Which statement about the Human Genome Project is incorrect?
• Match the following placental mammals with their marsupial counterparts: ...
• Which of the following is NOT a bacterial disease?
• Which of the following statements about antibodies is correct?
• Smack (heroin) is derived from which plant?
• Flocs in sewage treatment refer to:
• Which pair of biotechnological products and their sources is correct?
• A commonly used biocontrol agent against plant fungal diseases is:
• Downstream processing in biotechnology mainly refers to:
• Which enzyme is correctly paired with its function?
• Arrange the steps of recombinant DNA technology in the correct order: (A) Ligation (B) Transformation (C) Restriction digestion (D) Selection of transforme...
• Which of the following is NOT a feature of recombinant DNA technology?
• ‘Rosie’ the transgenic cow was developed to:
• Biopiracy refers to:
• The term ‘GEAC’ stands for:
• The Bt toxin in Bt crops kills insects by:
• Identify the correctly matched pair:
• A population with an equal number of young and mature individuals represents:
• The Competitive Exclusion Principle states that:
• The process of mineralization releases:
• In which ecosystem is the biomass of primary consumers greater than that of producers?
• Decomposition is affected by:
• The ‘Standing Crop’ in an ecosystem refers to:
• Which of the following represents net primary productivity?
• Match List-I with List-II :
• The phase of menstrual cycle in which ovulation occurs is called:
• Which part of the female reproductive system serves as the site of fertilization?