Zoology
- Which of the following is present between the adjacent bones of the vertebral column ? Answer: 3. Cartilage Key idea: Adjacent vertebrae are separated by intervertebral discs made of fibrocartilage. These cartilaginous discs ac... 1
- Lippe's loop is a type of contraceptive used as : Answer: 4. Non-Medicated IUD Key idea: Lippes loop is a plastic, inert intrauterine device. IUDs come in three types: non-medicated (Lippes... 1
- At which stage of life the oogenesis process is initiated ? Answer: 3. Embryonic development stage Key idea: Oogenesis begins before birth, during the embryonic stage. Oogonia form in the foetal ovary... 1
- Which of the following is not a connective tissue ? Answer: 1. Neuroglia Key idea: Neuroglia are supporting cells of nervous tissue. Blood, adipose tissue and cartilage are all connective tiss... 1
- Which one of the following statement is not true regarding gel electrophoresis technique ? Answer: 4. The presence of chromogenic substrate gives blue coloured DNA bands on the gel. In gel electrophoresis, DNA fragments are stained... 1
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A) :Polymerase chain reaction is used in DNA amplificationReason (R) :The ampicillin resistant gene is used as a selectable marker to… Answer: 3. Both (A) and (R) are correct but (R) is not the correct explanation of (A) Check each statement and then the link between them. A... 1
- Match List - I with List - II.List - I / List - II(a) Filariasis (i) Haemophilus influenzae(b) Amoebiasis (ii) Trichophyton(c) Pneumonia (iii) Wuchereria bancrofti(d) Ringworm (iv) Entamoeba histolyticaChoose the correct answer from the options given… Answer: 2. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) Filariasis - Wuchereria bancrofti Amoebiasis - Entamoeba histolytica Pneumonia - Haemophil... 1
- The Adenosine deaminase deficiency results into : Answer: 1. Dysfunction of Immune system Adenosine deaminase (ADA) deficiency damages lymphocytes and causes severe combined immunodeficiency... 1
- Match List - I with List - II.List - I / List - II(a) Adaptive radiation (i) Selection of resistant varieties due to excessive use of herbicides and pesticides(b) Convergent evolution (ii) Bones of forelimbs in Man and Whale(c) Divergent evolution (i… Answer: 1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) Adaptive radiation - Darwin's finches (iv) Convergent evolution - wings of butterfly and b... 1
- Assertion (A) :A person goes to high altitude and experiences ‘altitude sickness’ with symptoms like breathing difficulty and heart palpitations.Reason (R) :Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.In… Answer: 1. Both (A) and (R) are true and (R) is the correct explanation of (A) Altitude sickness gives breathlessness and palpitations at hi... 1
- During muscular contraction which of the following events occur ?(a) ‘H’ zone disappears(b) ‘A’ band widens(c) ‘I’ band reduces in width(d) Myosine hydrolyzes ATP, releasing the ADP and Pi(e) Z-lines attached to actins are pulled inwardsChoose the co… Answer: 1. (a), (c), (d), (e) only During contraction, thin filaments slide over thick ones. (a) H zone disappears - true. (b) A band widens... 1
- Match List - I with List - II.List - I / List - II(a) Scapula (i) Cartilaginous joints(b) Cranium (ii) Flat bone(c) Sternum (iii) Fibrous joints(d) Vertebral column (iv) Triangular flat boneChoose the correct answer from the options given below. Answer: 4. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) Scapula - triangular flat bone (iv) Cranium - fibrous joints (sutures) (iii) Sternum - fla... 1
- Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET) ? Answer: 1. Cow is administered hormone having LH like activity for super ovulation In MOET, the cow is given hormone with FSH-like activity... 1
- Following are the statements about prostomium of earthworm.(a) It serves as a covering for mouth.(b) It helps to open cracks in the soil into which it can crawl.(c) It is one of the sensory structures.(d) It is the first body segment.Choose the corre… Answer: 1. (a), (b) and (c) are correct The prostomium is a lobe that covers the mouth, is sensory and helps in opening cracks in the soil.... 1
- With regard to insulin choose correct options.(a) C-peptide is not present in mature insulin.(b) The insulin produced by rDNA technology has C-peptide.(c) The pro-insulin has C-peptide.(d) A-peptide and B-peptide of insulin are interconnected by disu… Answer: 3. (a), (c) and (d) only Pro-insulin has chains A, B and a connecting C-peptide. During maturation C-peptide is removed, leaving A a... 1
- For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection ? Answer: 3. ELISA Technique ELISA detects antigens or antibodies and can reveal infection (e.g. HIV) before symptoms appear, so it is the tec... 1
- During the process of gene amplification using PCR, if very high temperature is not maintained in the beginning, then which of the following steps of PCR will be affected first ? Answer: 3. Denaturation PCR starts with denaturation at about 94°C, which separates the double-stranded DNA into single strands. Without thi... 1
- Match the following :List - I / List - II(a) Physalia (i) Pearl oyster(b) Limulus (ii) Portuguese Man of War(c) Ancylostoma (iii) Living fossil(d) Pinctada (iv) HookwormChoose the correct answer from the options given below. Answer: 3. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i) Physalia - Portuguese Man of War (ii) Limulus (king crab) - living fossil (iii) Ancylostom... 1
- Which one of the following belongs to the family Muscidae ? Answer: 4. House fly The house fly, Musca domestica, belongs to family Muscidae. Fire fly is a beetle (Lampyridae), grasshopper is Acrididae... 1
- Read the following statements.(a) Metagenesis is observed in Helminths.(b) Echinoderms are triploblastic and coelomate animals.(c) Round worms have organ-system level of body organization.(d) Comb plates present in ctenophores help in digestion.(e) W… Answer: 4. (b), (c) and (e) are correct Check each statement. (a) Metagenesis (alternation of generations) is seen in cnidarians, not helmin... 1
- Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins ? Answer: 1. Thrombin Fibrinogen is converted to insoluble fibrin by the enzyme thrombin, which itself is formed from prothrombin by thromboki... 1
- Succus entericus is referred to as : Answer: 2. Intestinal juice Succus entericus is the intestinal juice secreted by the glands of the small intestine (Brunner's glands and cry... 1
- Erythropoietin hormone which stimulates R.B.C. formation is produced by : Answer: 4. Juxtaglomerular cells of the kidney Erythropoietin is secreted by the juxtaglomerular cells of the kidney in response to low oxyg... 1
- Match List - I with List - II.List - I / List - II(a) Vaults (i) Entry of sperm through Cervix is blocked(b) IUDs (ii) Removal of Vas deferens(c) Vasectomy (iii) Phagocytosis of sperms within the Uterus(d) Tubectomy (iv) Removal of fallopian tubeChoo… Answer: 2. (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv) Vaults (barrier method) block entry of sperm through the cervix - (i) IUDs cause phagocyto... 1