Worksheet Biology Class 12 Chapter
11 Name___________________ Roll
no. _____
1.
The full form of EFB is
________________________.
2.
The two core techniques that enabled
birth of modern biotechnology are:
_____________________________ and
__________________________
3.
The techniques of genetic engineering
include creation of rec_________________________
, use of gene
___________________ and gene
__________________.
4.
___________________________ are also called
molecular scissors.
5.
The plasmid acts as ______________ to
transfer the piece of DNA attached to it.
6.
The three basic steps in genetically
modifying an organism are:
(i)
Identification of ________ with
desirable __________
(ii)
Introduction of the indentified
_______ into the _________
(iii)
Maintenance of introduced ______ in
the _______ and _________ of the ________ to its progeny.
7.
Name any two restriction enzymes:
______________________and ____________________
8.
In gel electrophoresis, DNA fragment
is stained in _________________ and is exposed to ________ light.
9.
The process of separating and
extracting of DNA fragments from the gel piece by washing with chemicals is
called __________________.
10. Origin
______________________ or ori is a sequence of from where __________________
starts.
11. Ampicillin
resistance gene and Tetracycline resistance gene are considered useful
___________________.
12. Micro-injection
and gene gun are used to introduce ______________ into the host cells.
13. The
full form of EFB is ________________________.
14. The
two core techniques that enabled birth of modern biotechnology are:
_____________________________ and
__________________________
15. The
techniques of genetic engineering include creation of _________________________
, use of _____________________ and ____________________.
16. ___________________________
are also called molecular scissors.
17. The
plasmid acts as ______________ to transfer the piece of DNA attached to it.
18. The
three basic steps in genetically modifying an organism are:
(i)
______________________________________________
(ii)
_____________________________________________
(iii)
________________________________________________________________________
____________________________.
19. Name
any two restriction enzymes: ______________________and ____________________
20. In
gel electrophoresis, DNA fragment is stained in _________________ and is
exposed to ________ light.
21. ________________________________________________________________________________________________________________________________________is
called elution.
22. Origin
______________________ or ori is ______________________________________________.
23. Ampicillin
resistance gene and Tetracycline resistance gene are _____________________________
_________________________.
24. Micro-injection
and gene gun are ____________________________________________________.
25. Draw
a diagrammatic representation of recombinant DNA technology.