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Disorders
See What Others Are Saying!
Question
A deficiency of the enzyme Hypoxanthine Guanine phosphoribosyl transferase (HGPRT) may cause
Options
A. Gaucher's disease
B. Ehlers-Danlos syndrome
C. Lesch- Nyhan syndrome
D. Kleinefelter's syndrome
Correct Answer
Lesch- Nyhan syndrome
More questions
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
Show Answer
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Discuss
Correct Answer: it doesn't contain amylases to hydrolyze starch
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
Show Answer
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Discuss
Correct Answer: Papaya
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
Show Answer
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Discuss
Correct Answer: All of the above
4. Which of the following transposable elements are not found in plants?
Options
A. Ac
B. Tam3
C. L1
D. All are found
Show Answer
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Discuss
Correct Answer: L1
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
Show Answer
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Discuss
Correct Answer: the state of most cells in an animal body
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
Show Answer
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Discuss
Correct Answer: different cells exhibit different control strategies
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 ->
Show Answer
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Correct Answer: -> S -> G2 -> mitosis -> cytokinesis -> G1 ->
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
Show Answer
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Discuss
Correct Answer: G0 Phase
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
Show Answer
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Discuss
Correct Answer: translocation heterozygote
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
Show Answer
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Discuss
Correct Answer: It is governed by many genes with small cumulative effect
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