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- Question
Helper T cells assist in the functions of
Options- A. certain B cells
- B. certain T cells
- C. certain B cells and other T cells
- D. none of the above
- Correct Answer
- certain B cells and other T cells
- 1. If starch containing substrates are used for ethanol production, yeast strain can't be used directly because
Options- A. it doesn't contain amylases to hydrolyze starch
- B. starch is not a suitable substrate for the production of ethanol
- C. it is converted to pentose sugar
- D. none of the above Discuss
- 2. Which tropical fruit crop has been successfully engineered to be protected against a lethal virus?
Options- A. Passion fruit
- B. Papaya
- C. Mango
- D. Lychee Discuss
- 3. What are different substrates used for ethanol production?
Options- A. Starch containing substrate
- B. Juices from sugarcane or molasses or sugar beet
- C. Waste product from wood or processed wood
- D. All of the above Discuss
- 4. Which of the following transposable elements are not found in plants?
Options- A. Ac
- B. Tam3
- C. L1
- D. All are found Discuss
- 5. The G0 phase is
Options- A. a permanent state of all body cells
- B. the state of most cells in an animal body
- C. another name for interphase
- D. all of the above Discuss
- 6. The cell cycle is controlled in most cells by
Options- A. time (after a certain length of time the cell divides)
- B. a series of checkpoints
- C. cell size (when the cell reaches a certain size, it divides)
- D. different cells exhibit different control strategies Discuss
- 7. Sequences that correctly describes the cell cycle is
Options- A. -> G1-> G2 -> S -> mitosis -> cytokinesis ->
- B. -> S -> G2 -> mitosis -> cytokinesis -> G1 ->
- C. -> G1 ->S -> G2 -> cytokinesis -> mitosis ->
- D. ->cytokinesis-> mitosis -> G1 -> S -> G2 -> Discuss
- 8. Cells which no longer divide (such as certain specialized cells found in the human brain) remain in which phase of the cell cycle?
Options- A. Prophase
- B. S phase
- C. G0 Phase
- D. Gl Phase Discuss
- 9. A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of
Options- A. translocation heterozygote
- B. deficiency
- C. haploid organism
- D. duplication Discuss
- 10. Which of the following is correct when a character shows continuous variation assuming a normal distribution?
Options- A. It is governed by many genes with small cumulative effect
- B. It is not controlled genetically
- C. Many of the variation is due to fluctuation of climate
- D. None of the above Discuss
More questions
Correct Answer: it doesn't contain amylases to hydrolyze starch
Correct Answer: Papaya
Correct Answer: All of the above
Correct Answer: L1
Correct Answer: the state of most cells in an animal body
Correct Answer: different cells exhibit different control strategies
Correct Answer: -> S -> G2 -> mitosis -> cytokinesis -> G1 ->
Correct Answer: G0 Phase
Correct Answer: translocation heterozygote
Correct Answer: It is governed by many genes with small cumulative effect
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