Discussion
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- Question
Thin layer chromatography is
Options- A. partition chromatography
- B. electrical mobility of ionic species
- C. adsorption chromatography
- D. none of the above
- Correct Answer
- adsorption chromatography
- 1. The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is
Options- A. DNA polymerase
- B. strandase
- C. helicase
- D. none of these Discuss
- 2. The nicks or gaps between Okazaki fragments are eventually sealed by
Options- A. gyrase
- B. DNA ligase
- C. RNA ligase
- D. polymerase Discuss
- 3. DNA with a G-C content of 50% will melt at approximately
Options- A. 60°C
- B. 70 °C
- C. 90 °C
- D. 100 °C Discuss
- 4. 30 nm wide helix with five or six nucleosomes per helix is known as
Options- A. solenoid
- B. halonoid
- C. kinoplast
- D. none of these Discuss
- 5. Which amino acid when exposed to ninhydrin produces a brown color?
Options- A. Asparagine
- B. Proline
- C. Alanine
- D. Valine Discuss
- 6. Most transcripts of protein coding genes are cleaved
Options- A. at the 3' end just after a poly adenylation signal
- B. at the 3' end just before a poly adenylation signal
- C. at the 5' end immediately after a poly adenylation signal
- D. at the 5' end immediately before a poly adenylation signal Discuss
- 7. The nature of peptide bond can be best explained as
Options- A. partial double bond
- B. truly double bond
- C. Hydrogen bond
- D. Van der waals force Discuss
- 8. During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for
Options- A. complex I
- B. complex II
- C. complex III
- D. complex IV Discuss
- 9. Cell signaling can be classified into
Options- A. three distinct types based on the distance over which the signaling molecules act
- B. two distinct types based on the distance over which the signaling molecules act
- C. three distinct types based on the signaling molecules
- D. none of the above Discuss
- 10. The major element of secondary structure in myoglobin and hemoglobin is
Options- A. the P-strand
- B. the a-helix
- C. the reverse turn
- D. All of these Discuss
More questions
Correct Answer: helicase
Correct Answer: DNA ligase
Correct Answer: 90 °C
Correct Answer: solenoid
Correct Answer: Asparagine
Correct Answer: at the 3' end just after a poly adenylation signal
Correct Answer: partial double bond
Correct Answer: complex II
Correct Answer: three distinct types based on the distance over which the signaling molecules act
Correct Answer: the a-helix
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