All questions
- Which of the following RNAs is not required for the synthesis of protein? (1) siRNA (2) mRNA (3) tRNA (4) rRNA (1) siRNA is not required for the synthesis of protein 2
- Chronic auto immune disorder affecting neuro muscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called (4) Myasthenia gravis 2
- 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. (4) (a), (c) and (d) only 2
- Identify the incorrect pair. (1) Drugs - Ricin (2) Alkaloids - Codeine (3) Toxin - Abrin (4) Lectins - Concanavalin A (1) Drugs - Ricin 2
- A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is : (1) Poly (A) tail sequences (4) Palindromic Nucleotide sequences 2
- The organelles that are included in the endomembrane system are: (1) Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes (3) Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles 1
- Persons with ‘AB’ blood group are called as “Universal recipients”. This is due to: (1) Absence of antibodies, anti-A and anti-B, in plasma (1) Absence of antibodies, anti-A and anti-B, in plasma 2
- Which one of the following organisms bears hollow and pneumatic long bones? (1) Ornithorhynchus (2) Neophron (3) Hemidactylus (4) Macropus (2) Neophron 2
- Veneral diseases can spread through: (a) Using sterile needles (b) Transfusion of blood from infected person (4) (b) and (c) only is the correct option 2
- Dobson units are used to measure thickness of : (1) Troposphere (2) CFCs (3) Stratosphere (4) Ozone ozone:: Dobson units are used to measure thickness of Ozone 2
- Which of the following characteristics is incorrect with respect to cockroach? (1) 10th abdominal segment in both sexes, bears a pair of anal cerci. (2) A ring of gastric caeca is present at the junction of midgut and hind gut. 1
- The centriole undergoes duplication during: (1) G2phase (2) S-phase (3) Prophase (4) Metaphase (2) S-phase is correct option 2
- Which one of the following is an example of Hormone releasing IUD ? (1) Multiload 375 (2) CuT (3) LNG 20 (4) Cu 7 3) LNG 20 is the correct option 2
- Match List - I with List - II. (a) Metamerism (i) Coelenterata Correct option: (3) (iii) (iv) (ii) (i) 2
- 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 (4) Denaturation is correct option 2
- Which one of the following belongs to the family muscidae? (1) House fly (2) Fire fly (3) Grasshopper (4) Cockroach (1) House fly is the correct option 2
- Which of the following statements wrongly represents the nature of smooth muscle? (1) These muscles are present in the wall of blood vessels (4) Communication among the cells is performed by intercalated discs 1
- In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be disease 4) 25% is correct option 2
- Read the following statements. (a) Metagenesis is observed in Helminths. (1) (b), (c) and (e) are correct 2
- The partial pressures (in mm Hg) of oxygen (O2) and carbon dioxide (CO2) at alveoli (the site of diffusion) are (2) pO₂ = 104 and pCO_(2 )= 40 2
- If adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it? (1) T : 20 ; G 25 : 25 ; C : 25 (4) T : 30 ; G : 20 ; C : 20 2
- Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature? (1) Pachytene (2) Leptotene (3) Zygotene (4) Diakinesis (4) Diakinesis is the correct option 2
- Match the following: (a) Physalia (i) Pearl oyster Correct option: (3) (ii) (iii) (iv) (i) 2
- Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli. (1) Low pO2, low pCO2, more H+ , higher temperature (2) High pO2, low pCO2, less H+ , lower temperature 2