Discussion
Home ‣ Biochemistry ‣ DNA Structure and Replication See What Others Are Saying!
- Question
Taylor, Woods and Hughes labeled Vicia DNA by allowing new DNA synthesis in the presence of radioactive thymine. After DNA replication (S phase of the cell cycle), it was observed that
Options- A. only one chromatid of a chromosome was labeled
- B. both chromatids of a chromosome were labeled
- C. both (a) and (b)
- D. neither chromatid was labeled
- Correct Answer
- both chromatids of a chromosome were labeled
- 1. The lac operon is translated into __________ proteins.
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 2. AUG codes for methionine act as a
Options- A. initiation code
- B. elongation code
- C. termination code
- D. propagation code Discuss
- 3. The enzyme that joins DNA cuts is called
Options- A. joinase
- B. ligase
- C. DNA phosphorylase
- D. reverse transcriptase Discuss
- 4. ATP is from which general category of molecules?
Options- A. Polysaccharides
- B. Proteins
- C. Nucleotides
- D. Amino acids Discuss
- 5. a-amylose is similar to
Options- A. ?-sheets
- B. ?-turned coils
- C. ?-helices
- D. the hydrophobic core Discuss
- 6. Clearly defined nucleus, mitochondria in a large central vacuole and chloroplasts, indicate the group of organisms from
Options- A. bacteria
- B. fungi
- C. plants
- D. animals Discuss
- 7. How many classes of steroid hormones are there?
Options- A. 3
- B. 2
- C. 4
- D. 5 Discuss
- 8. Which of the following is not a type of signaling molecule?
Options- A. Testosterone
- B. Insulin
- C. Thyroxin
- D. Adenylate cyclase Discuss
- 9. The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin
Options- A. B12(Co2+)to B12(Co)
- B. B12(Co) to B12(Co2+)
- C. B12(Co2+)to B12(Co+)
- D. B12(Co+)to B12(Co2+) Discuss
- 10. Triacylglycerols are
Options- A. soluble in water
- B. insoluble in water
- C. soluble in water at elevated temperature
- D. partially soluble in water Discuss
More questions
Correct Answer: 3
Correct Answer: initiation code
Correct Answer: ligase
Correct Answer: Nucleotides
Correct Answer: ?-helices
Correct Answer: plants
Correct Answer: 5
Correct Answer: Adenylate cyclase
Correct Answer: B12(Co2+)to B12(Co+)
Correct Answer: insoluble in water
Comments
There are no comments.More in Biochemistry:
Programming
Copyright ©CuriousTab. All rights reserved.