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- 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
- 1. A cytokine that stimulates the activity of B and T cells is
Options- A. lymphotoxin
- B. interlukin-2
- C. interlukin-1
- D. all of these Discuss
- 2. A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as
Options- A. zymogram
- B. chromogram
- C. idiogram
- D. karyogram Discuss
- 3. S cerevisiae start producing ethanol with in
Options- A. 10 h
- B. 12 h
- C. 15 h
- D. 24 h Discuss
- 4. Involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be
Options- A. 3-deoxyanthocyanidin
- B. luteolinidin
- C. apigeninidin
- D. 5-0 apigeninidin Discuss
- 5. Liposomes mediated gene transfer in plants involves
Options- A. plasmid DNA enclosed in a lipid bag
- B. fusion of liposomes with protoplast
- C. use of polyethylene glycol (PEG)
- D. all of the above Discuss
- 6. When an organism has a life cycle with alternation of generations, the haploid generation is the
Options- A. zygote
- B. gametophyte
- C. gamete
- D. sporophyte Discuss
- 7. Which of the following genes are constitutively expressed and control the plant induced activation of other vir genes?
Options- A. vir A and vir G
- B. vir C and vir D
- C. vir B and vir E
- D. vir A and vir B Discuss
- 8. Opine synthesis is the property
Options- A. conferred to plant cells when it transformed by Agrobacterium tumefaciens
- B. determined by the bacteria Agrobacterium tumefaciens
- C. both (a) and (b)
- D. of normal plant cells Discuss
- 9. The left segment of octopine T-DNA (TL) is necessary for
Options- A. enzymes for agropine biosynthesis
- B. tumour formation
- C. conjugative transfer
- D. all of these Discuss
- 10. Organogenesis is
Options- A. formation of callus tissue
- B. formation of root and shoots on callus tissue
- C. both (a) and (b)
- D. genesis of organs Discuss
More questions
Correct Answer: interlukin-2
Correct Answer: idiogram
Correct Answer: 12 h
Correct Answer: 3-deoxyanthocyanidin
Correct Answer: all of the above
Correct Answer: gametophyte
Correct Answer: vir A and vir G
Correct Answer: both (a) and (b)
Correct Answer: tumour formation
Correct Answer: formation of root and shoots on callus tissue
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