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- Question
In a plant cell, DNA may be found in
Options- A. only in the nucleus and mitochondria.
- B. only in the nucleus and chloroplasts
- C. in the nucleus, mitochondria, and chloroplasts.
- D. only in the nucleus.
- Correct Answer
- in the nucleus, mitochondria, and chloroplasts.
ExplanationAll of the genetic information in a cell was initially thought to be confined to the DNA in the chromosomes of the cell nucleus.
It is now known that small circular chromosomes, called extranuclear, or cytoplasmic, DNA, are located in two types of organelles found in the cytoplasm of the cell.
These organelles are the mitochondria in animal and plant cells and the chloroplasts in plant cells.
Chloroplast DNA (cpDNA) contains genes that are involved with aspects of photosynthesis and with components of the special protein-synthesizing apparatus that is active within the organelle.
Mitochondrial DNA (mtDNA) contains some of the genes that participate in the conversion of the energy of chemical bonds into the energy currency of the cell?a chemical called adenosine triphosphate (ATP)?as well as genes for mitochondrial protein synthesis.
- 1. The Rath Yatra at Puri is celebrated in honour of which Hindu deity
Options- A. Ram
- B. Jaganath
- C. Shiva
- D. Vishnu Discuss
- 2. The minimum age to qualify for election to the Lok Sabha is
Options- A. 25 years
- B. 21 years
- C. 18 years
- D. 35 years Discuss
- 3. FFC stands for
Options- A. Foreign Finance Corporation
- B. Film Finance Corporation
- C. Federation of Football Council
- D. None of the above Discuss
- 4. Which of the following famous financial journals of international repute confers 'Finance minister of the year' Award?
Options- A. Dalal Street
- B. Business Standard
- C. Euromoney
- D. Money Matters Discuss
- 5. Amalgams are
Options- A. highly coloured alloys
- B. alloys which contain mercury as one of the contents
- C. alloys which have great resistance to abrasion
- D. alloys which contain carbon Discuss
- 6. Which of the following are the ingredients of gun metal?
Options- A. Iron, Zinc, Titanium
- B. Iron, tin
- C. Iron, Brass, Tin
- D. Copper, Tin Discuss
- 7. The term 'Tee' is connected with
Options- A. Badminton
- B. Golf
- C. Bridge
- D. Polo Discuss
- 8. World Human Rights Day is observed on
Options- A. April 8
- B. December 10
- C. December 7
- D. September 5 Discuss
- 9. The president can advance money to meet unforeseen expenses, pending authorization by Parliament, from
Options- A. the Consolidated Fund of India
- B. the Contingency Fund
- C. both the above funds
- D. None of the above Discuss
- 10. The national anthem was written by
Options- A. Bankim Chandra Chatterjee
- B. Rabindranath Tagore
- C. Sarat Chandra Chatterjee
- D. Aurobindo Ghosh Discuss
More questions
Correct Answer: Jaganath
Correct Answer: 25 years
Correct Answer: Film Finance Corporation
Correct Answer: Euromoney
Correct Answer: alloys which contain mercury as one of the contents
Correct Answer: Copper, Tin
Correct Answer: Golf
Correct Answer: December 10
Correct Answer: the Contingency Fund
Correct Answer: Rabindranath Tagore
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