Skip to content
Philoid
Browse Saved
Back to chapter
Biology
All India-2017
Home · Class 12 · Biology · Ref. Book · All India-2017
Prev
Next
Q4 of 49 Page 1

What are Cry genes? In which organism are they present?

Cry genes are genes which codes a Bt toxin which is toxic to some insects which provides resistant to the plants. Cry genes are present in bacterium Bacillus thuringiensis.


More from this chapter

All 49 →
2

State two postulates of Oparin and Haldane with reference to origin of life.

3

A herd of cattle is showing reduced fertility and productivity. Provide one reason and one suggestion to overcome this problem.

5

An electrostatic precipitator in a thermal power plant is not able to generate high voltage of several thousands. Write the ecological implication because of it.

6

A pollen grain in angiosperm at the time of dehiscence from an anther could be 2-celled or 3-celled. Explain, how are the cells placed within the pollen grain when shed at a 2-celled stage?

Questions · 49
All India-2017
1 2 3 4 5 6 7 8 9 10 10 11 12 13 14 15 15 16 17 18 19 20 21 22 23 24 24 25 25 26 26 3 6 8 10 12 13 15 18 25 25 2 7 9 10 11 16 22 24
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved