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Discussion
Home
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Biotechnology
‣
Animal Biotechnology Chromosomes
See What Others Are Saying!
Question
Transmission of a gene from male parent to female child to male grand child is known as
Options
A. holandric inheritance
B. quantitative inheritance
C. criss-cross inheritance
D. maternal inheritance
Correct Answer
criss-cross inheritance
More questions
1. Phloem is composed of
Options
A. vessel elements and companion cells
B. tracheids and vessel elements
C. sieve-tube elements and companion cells
D. tracheids and sieve-tube elements
Show Answer
Scratch Pad
Discuss
Correct Answer: sieve-tube elements and companion cells
2. The ability of the component cells of callus to form a whole plant is known as
Options
A. redifferentiation
B. dedifferentiation
C. either (a) or (b)
D. none of these
Show Answer
Scratch Pad
Discuss
Correct Answer: redifferentiation
3. T-DNA transfer and processing into plant genome requires products of which of the following genes?
Options
A.
vir
A,B
B.
vir
G,C
C.
vir
D,E
D. All of these
Show Answer
Scratch Pad
Discuss
Correct Answer: All of these
4. Plasmids which are maintained as multiple copy number per cell are known as
Options
A. stringent plasmids
B. relaxed plasmids
C. cryptic plasmids
D. none of these
Show Answer
Scratch Pad
Discuss
Correct Answer: relaxed plasmids
5. Fermentation medium for oxytetracyclin (terramycin) consist of
Options
A. CSL, starch, (NH
4
)
2
SO
4
, sodium chloride and CaCO
3
B. CSL, (NH
4
)
2
SO
4
, sodium chloride and CaCO
3
C. CSL, starch,(NH
4
)
2
SO
4
, ammonium chloride and CaCO
3
D. CSL,(NH
4
)
2
SO
4
, ammonium chloride and CaCO
3
Show Answer
Scratch Pad
Discuss
Correct Answer: CSL, starch, (NH
4
)
2
SO
4
, sodium chloride and CaCO
3
6. When dissolved oxygen is lower than the critical concentration, viable cell concentration declines because of
Options
A. incomplete glutamine oxidation
B. increase in specific lactate production from glucose
C. both (a) and (b)
D. accumulation of ammonia
Show Answer
Scratch Pad
Discuss
Correct Answer: both (a) and (b)
7. 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
Scratch Pad
Discuss
Correct Answer: it doesn't contain amylases to hydrolyze starch
8. 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
Scratch Pad
Discuss
Correct Answer: Papaya
9. 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
Scratch Pad
Discuss
Correct Answer: All of the above
10. Which of the following transposable elements are not found in plants?
Options
A. Ac
B. Tam3
C. L1
D. All are found
Show Answer
Scratch Pad
Discuss
Correct Answer: L1
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