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- Question
Which of the modification in hemoglobin is the cause of sickle cell anemia?
Options- A. A mutation in the beta chain
- B. A deletion in the beta chain
- C. Replacement of the B chain by D chain
- D. None of the above
- Correct Answer
- A mutation in the beta chain
- 1. Biochips are made up of
Options- A. semi-conducting molecules inserted into the protein frame work
- B. conducting molecules inserted into the protein frame work
- C. non-conducting molecules inserted into the protein frame work
- D. any of the above Discuss
- 2. To qualify as a micro array the analytical device must be
Options- A. ordered
- B. microscopic
- C. planer and specific
- D. all of these Discuss
- 3. A micro array is an ordered array of microscopic elements on a planer substrate that allows the specific binding of
Options- A. gene or gene products
- B. whole genome
- C. both (a) and (b)
- D. none of these Discuss
- 4. What is the size (in kb) of the tobacco chloroplast genome?
Options- A. 55 kilobase
- B. 155 kilobase
- C. 325 kilobase
- D. 375 kilobase Discuss
- 5. Pollination is the process by which plants transfer male sex cells from one plant to another. How does the nucleus of the male cell reach the female cell?
Options- A. It travels on the legs of bees and sticks to the egg cell
- B. The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell
- C. It blows in the wind
- D. None of the above Discuss
- 6. Which of the protein is involved in Alzheimer's disease?
Options- A. A4
- B. Amylin
- C. Fibrin
- D. Alzhemin Discuss
- 7. A deficiency of the enzyme Hypoxanthine Guanine phosphoribosyl transferase (HGPRT) may cause
Options- A. Gaucher's disease
- B. Ehlers-Danlos syndrome
- C. Lesch- Nyhan syndrome
- D. Kleinefelter's syndrome Discuss
- 8. The disorder in which of the following may cause "Ehlers-Danlos Syndrome"?
Options- A. Dlashin protein
- B. Collagen protein
- C. Fibrin protein
- D. Globulin protein Discuss
- 9. Methotrexate is toxic to human cells because it inhibits
Options- A. formation of CTP from UTP
- B. reduction of H2 folate to H4 folate
- C. synthesis of PRPP
- D. none of the above Discuss
- 10. During sickle cell anemia which of the following takes place?
Options- A. Glutamine change to valine
- B. Valine change to glutamine
- C. Aspartic acid change to glutamic acid
- D. Glutamic acid change to aspartic acid Discuss
Disorders problems
Search Results
Correct Answer: semi-conducting molecules inserted into the protein frame work
Correct Answer: all of these
Correct Answer: gene or gene products
Correct Answer: 155 kilobase
Correct Answer: The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell
Correct Answer: A4
Correct Answer: Lesch- Nyhan syndrome
Correct Answer: Collagen protein
Correct Answer: reduction of H2 folate to H4 folate
Correct Answer: Glutamine change to valine
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