biology Questions

QUESTION: Match List I with List II: List I (Respiratory Volume) A. ERV (Expiratory Reserve Volume) B. RV (Residual Volume) C. IRV (Inspiratory Reserve Volume) D. TV (Tidal Volume) List II (Capacity in mL) I. 2500-3000 mL II. 500 mL III. 1000-1100 mL

QUESTION: The specific receptors for neurotransmitters in a synapse are present on ________.

QUESTION: Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species, in the sequence of their appearance is:

QUESTION: In a population of a grasshopper species, the chromosome number of some members is 23 and some other members possess 24 chromosomes. The 23 and 24 chromosome-bearing members in this species are respectively

QUESTION: Select the set of fishes which belong to the class Osteichthyes:

QUESTION: Select the incorrect statements with reference to Rh grouping. A. Erythroblastosis foetalis is a condition observed having foetus with Rh+ve blood and mother with Rh+ve blood. B. Rh antigen is observed on RBCs in the majority of human being

QUESTION: Spermatogonia undergo a series of cell divisions to produce sperms. Select the correct statements from the following: A. Spermatogonia always undergo meiotic cell division. B. Primary spermatocytes divide mitotically to produce secondary sp

QUESTION: Which of the following statements are correct with reference to human endoskeleton? A. Human skull is monocondylic. B. The joint between any two adjoining vertebrae is a cartilaginous joint. C. In human beings, the number of cervical verteb

QUESTION: Choose the correct statement regarding GIFT to overcome infertility

QUESTION: Choose the correct statements regarding muscle contraction. A. A motor neuron carries a signal sent by the Central Nervous System (CNS) to the sarcolemma of the muscle fibre. B. The neural signal generates an action potential which causes t

QUESTION: A group of researchers procured some fish-like animals and upon investigation the following characters were observed: A. Endoskeleton was made of cartilage. B. Ectoparasitic; as they were found attached on fish skin with their circular suck

QUESTION: Select the incorrect statements from the following: A. Digestive system in Platyhelminthes is incomplete. B. Bilateral symmetry is a characteristic feature of adult Echinoderms. C. Pseudocoelom is possessed by Aschelminthes. D. Notochord is

QUESTION: The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as:

QUESTION: Match List I with List II related to embryonic development at various months of pregnancy : List I A. The foetus movement starts and hair appears on the head B. The foetus develops limbs and digits C. The foetus develops external genital or

QUESTION: The following are the stages of life cycle of Plasmodium. Arrange the stages in the proper order. A. The parasites reproduce asexually in RBCs, bursting the cells. B. The parasites reproduce asexually in liver cells, bursting the cells and

QUESTION: Match List I with List II : List-I A. Progestasert B. Multiload 375 C. Diaphragm D. Saheli List-II I. Barrier made of rubber used by females II. Oral contraceptive III. Hormone releasing IUD IV. Copper releasing IUD Choose the correct answe

QUESTION: Match List I with List II with respect to chronology of evolution of life forms: List-I A. About 65 mya B. About 500 mya C. About 350 mya D. About 320 mya List-II I. Jawless fish probably evolved II. The dinosaurs suddenly disappeared from

QUESTION: The WBC count of a person's blood sample is 8000/cu.mm. How many eosinophils and lymphocytes would be in the same blood sample approximately ?

QUESTION: Match List I with List II : List-I (Drug) A. Nicotine B. Morphine C. Heroin D. Cocaine List II (Effect) I. Causes sense of euphoria and increased energy II. Stimulates adrenal gland to release catecholamines into blood circulation III. Effe

QUESTION: The human protein named α-1-antitrypsin, obtained from transgenic animals, is used for the treatment of

QUESTION: Male frogs can be distinguished from female frogs due to the presence of: A. Bulging eyes B. Vocal sacs C. Webbed digits in feet D. Copulatory pad on first digit of fore limbs E. Olive green-coloured skin with dark irregular spots Choose th

QUESTION: The sixth mutant codon of beta globin gene causing polymerization of Haemoglobin and change in RBC shape is ________.

QUESTION: Match List I with List II : List-I A. Cortisol B. Aldosterone C. Cholecystokinin D. Progesterone List-II I. Stimulates the formation of alveoli in mammary glands II. Produces anti-inflammatory reactions III. Stimulates reabsorption of Na⁺ a

QUESTION: Choose the correct statements regarding frog's anatomy. A. Hepatic portal system is the special venous connection between liver and intestine. B. There are twelve pairs of cranial nerves arising from the brain. C. The ureters and oviducts o

QUESTION: The JGA (Juxta Glomerular Apparatus) is a special sensitive region formed by cellular modifications in ________ related to the same nephron.

QUESTION: The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively?

QUESTION: Choose the correct statements regarding cell organelles and their inclusions. A. The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria. B. Rough endoplasmic reticulum bears ribosomes on its surface. C. Both

QUESTION: Select the correct statements regarding cell membrane in eukaryotic cell. A. Membrane of human RBCs has approximately 52% protein. B. Major phospholipids are arranged in a bilayer. C. Extensions of the plasma membrane into the cell form mes

QUESTION: Match List I with List II related to muscular/skeletal system : List-I A. Tetany B. Arthritis C. Myasthenia gravis D. Muscular dystrophy List-II I. Inflammation of joints II. Autoimmune disorder affecting neuromuscular junction III. Wild co

QUESTION: Which one of the following is an appropriate example of 'sexual deceit'?

QUESTION: Arrange the following cell layers/structures around the female gamete, from outer to inner side : A. Zona pellucida B. Perivitelline space C. Corona radiata D. Plasma membrane of ovum Choose the correct answer from the options given below :

QUESTION: Which of the following equations depicts Verhulst-Pearl logistic population growth ?

QUESTION: Match List I with List II : List I (Bioactive molecules) A. Streptokinase B. Statins C. Lipases D. Cyclosporin A List II (Importance) I. Immunosuppressive agent II. Removal of clots from the blood vessels III. Blood cholesterol-lowering age

QUESTION: The following reaction depicts the activity of a particular class of enzymes : X Y | | C = C ⟶ X – Y + C = C (Substrate) (Product) (Product) Identify the enzyme class 'E' from the following options :

QUESTION: In humans, respiration occurs in the following steps. Arrange these steps in the correct order. A. Diffusion of O₂ and CO₂ between blood and tissues B. Diffusion of O₂ and CO₂ across alveolar membrane C. Pulmonary ventilation by which atmos

QUESTION: In which animal do haploid cells divide mitotically to produce gametes ?

QUESTION: Choose the correct statements regarding population interactions between two species. A. In both parasitism and commensalism, only one species benefits and the other species is harmed. B. Both species benefit in mutualism. C. Both species be

QUESTION: Arrange the following events occurring in Renin-Angiotensin mechanism in the correct order : A. Increase in blood pressure and Glomerular filtration rate. B. Reabsorption of Na⁺ and water from distal parts of tubule due to Aldosterone. C. F

QUESTION: Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for :

QUESTION: Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cells are ________.

QUESTION: Which of the following is not an example of convergent evolution ?

QUESTION: What is the reason behind production of large holes in 'Swiss Cheese' ?

QUESTION: Insertion of a foreign DNA at BamHI site in an E. coli cloning vector pBR322 results in the loss of antibiotic resistance towards :

QUESTION: Match List I with List II : List I A. Molluscs B. Reptiles C. Adult amphibians D. Amoeba List II I. Pulmonary respiration only II. Branchial respiration III. Cellular respiration IV. Pulmonary and Cutaneous respiration Choose the correct an

QUESTION: What is the probability of having children with 'O' blood group, where both mother and father are heterozygous for 'A' and 'B' blood group, respectively ?

QUESTION: Which of the following statements are correct with respect to DNA separation, isolation and visualization? A. The cutting of DNA is done by molecular scissors. B. The DNA fragments separate according to their size in an agarose gel, upon el

QUESTION: Match List I with List II : List-I (Process) A. Glycolysis B. ETS C. Accumulation of protons D. Krebs' cycle List-II (Location) I. Inner mitochondrial Membrane II. Mitochondrial Matrix III. Cytoplasm IV. Intermembrane space Choose the corre

QUESTION: How many ATP and NADPH molecules are required to make one molecule of glucose through the Calvin pathway ?

QUESTION: Identify the correct sequence of steps in each cycle of Polymerase Chain Reaction :

QUESTION: Match List I with List II : List-I A. Incomplete Dominance B. Codominance C. Pleiotropy D. Polygenic inheritance List-II I. Human skin colour II. Inheritance of flower colour in Antirrhinum sp. III. Phenylketonuria disease in humans IV. ABO