Biology Times 07.2019

(a) From both ends of chromosome simultaneously (b) Several sites along DNA of a chromosome simulatneously (c) From one end of c ...

Synthesis of all Polypeptides encoded by nuclear genes begins in (a) Cytosol (b) Nucleus (c) Mitochondria (d) Golgicomplex In C ...

(a) Glycine-valine-methionine-histidine- lysine (b) Lysine-methionine valine-glycine (c) Methionine-lysine-glycine-valine- histi ...

(c) (d) In regulation of gene expression in prokaryotes i. Lactose acts as suppressor for gene expression. ii. Tryptophan is in ...

iv. Bases on free nucleotides bond with bases on DNA strands. Which of the following shows the correct sequence? (a) i, iv, ii, ...

b 2. c 3. b 4. b 5. b c 7. a 8. a 9. d 10. b d 12. c 13. a 14. c 15. d a 17. b 18. b 19. b 20. d d 22. b 23. a 24. a 25. c a 27 ...

18.Sol: All the statements are correct except V as viruses with RNA as genetic material mutate faster. 19.Sol: Because in RNA th ...

Mechanism of concentration of filtrate m The Henle’s loop and vasa recta play a significant role ...

interstitium. Presence of such interstitial gradient helps in an easy passage of water from the ...

Micturition Urine formed by the nephrons is ultimately carried to the urinary bladder where it is sto ...

Various conditions can affect the characteristics of urine. Analysis of urine helps in clinical diagnosis of ...

Disorders Of The Excretory System Kidney Failure: Malfunctioning of kidneys can lead to accumulation of urea in ...

Regulation Of Kidney Function Volume of urine is regulated by (a) Aldosterone (b) Aldosterone and ADH (c) Aldosterone, ...

32 (c) Pyelonephritis (d) Nephritis a 2. a 3. a 4. a 5. c b 7. d 8. c 9. a 10. a d 12. ...

Water is lost along with salts in the form of sweat. (a) When you eat protein, your body ...

commonly caused by bacterial infection that has spread up the urinary tract or travelled through ...

Animal Kingdom The figure shows four animals 1, 2, 3 and 4. Select the correct answer with respect to a common characteristics ...

(d) A-Rostellum, B-Hair, C-Sucker, D-Segments Select the correct answer w.r.t common characteristics of two of the animals give ...

(a) Planaria - A (b) Earthworm - C (c) Roundworm - C (d) Tapeworm - B Among the given figures A,B , C and D, identify the anima ...

A. Both are egg laying mammals B. Both are lizard-like reptiles C. Dinosaur is their common ancestor D. Platypus Males have pois ...