Discussion
Home ‣ Biochemistry ‣ Genetic Code and Regulation See What Others Are Saying!
- Question
The genetic code is
Options- A. universal
- B. universal except for rare exceptions in mitochondria and some protozoa
- C. species-specific
- D. kingdom-specific
- Correct Answer
- universal except for rare exceptions in mitochondria and some protozoa
- 1. The PCR, polymerase chain reaction is becoming the method of choice for
Options- A. Alteration of gene
- B. screening gene
- C. sterilization of gene
- D. all of these Discuss
- 2. Why are several structural genes regulated as a unit in bacteria?
Options- A. An accident of evolution
- B. It allows coordinating regulation of genes with a common function
- C. The bacteria chromosome is so small; many different genes must be controlled by the same promoter
- D. none of the above Discuss
- 3. The manufacture of ATP in both photosynthesis and respiration is made possible by
Options- A. the existence of a proton gradient across specific membranes
- B. the action of ATP synthase
- C. energy from the movement of electrons
- D. All of the above Discuss
- 4. Alternate splicing of RNA transcripts is a mechanism to regulate
Options- A. tubulin
- B. tachykinins
- C. DNA methylation
- D. leucine zippers Discuss
- 5. The complete oxidation of glucose yields usable energy in the form of
Options- A. FADH2
- B. coenzyme A
- C. ATP
- D. pyruvic acid Discuss
- 6. Catabolite activating protein exerts __________ control on transcription of the lac operon genes.
Options- A. positive
- B. negative
- C. may be positive or negative
- D. none of these Discuss
- 7. Genes which need to be coordinately regulated but are not in operons may be regulated by
Options- A. common transcription factor binding domains
- B. TATA boxes
- C. CAAT regions
- D. GC regions Discuss
- 8. Which of the following genetic diseases would be amenable to genetic engineering?
Options- A. Down's syndrome
- B. Muscular dystrophy
- C. Cystic fibrosis
- D. Cri du Chat Discuss
- 9. Which of the following is not a transcription factor?
Options- A. Helix-turn-helix proteins
- B. Zinc finger proteins
- C. Leucine zipper proteins
- D. Steroid hormones Discuss
- 10. Which of the following two organelles look most alike structurally?
Options- A. Nucleus and vesicle
- B. Golgi apparatus and smooth endoplasmic reticulum ER
- C. Vacuole and cytoskeleton
- D. Lysosome and chloroplast Discuss
More questions
Correct Answer: screening gene
Correct Answer: It allows coordinating regulation of genes with a common function
Correct Answer: All of the above
Correct Answer: tachykinins
Correct Answer: ATP
Correct Answer: positive
Correct Answer: common transcription factor binding domains
Correct Answer: Cystic fibrosis
Correct Answer: Steroid hormones
Correct Answer: Golgi apparatus and smooth endoplasmic reticulum ER
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