B3g - Genetic Engineering.ppt

roachavocadoBiotechnology

Dec 14, 2012 (4 years and 4 months ago)

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Selective Breeding & Genetic
Engineering

B3g

OBJECTIVES

Key Objective


Describe the processes of selective breeding and genetic engineering


C/D


Describe the process of selective breeding


Explain how selective breeding can contribute to improved agricultural
yields.


Explain some potential advantages and risks of genetic engineering and
selective breeding


Describe, in outline only, some examples of genetic engineering


A/B


Explain that a selective breeding programme may reduce the gene pool
leading to problems of inbreeding


Describe the principles of genetic engineering


Discuss the moral and ethical issues involved in genetic modification
weighed against the potential benefits.

Your Task …


Split a double page spread in your books into 4
sections called:


Selective breeding


Problems with designer animals


The process of genetic engineering


Pros & cons of genetic engineering


Make notes on the blue (C/D) & purple (A/B)
sections on p41 & 43


assess how comfortable you
are with this information.


Attempt the questions at the bottom of these
sections


reassess your grade.

VCOP Technique


Vocabulary


desirable, select, breed, characteristics


Connectives


because, therefore, however, but, such as,
etc.


Openers


However, Therefore, So, Firstly, etc.


Punctuation


, .
-

: ;

17/03/2013

Uses of Genetic Engineering

With genetic engineering I can
produce milk that contains:



Extra protein



Lower levels of cholesterol



Human antibodies

I am called a “transgenic”
animal

17/03/2013

Genetic engineering
-

Insulin

Step 1:

Using RESTRICTION
ENZYMES “cut out” the part of
the human chromosome that is
responsible for producing insulin.

Step 2:

Using another restriction
enzyme cut open a ring of bacterial
DNA (a “plasmid”). Other enzymes
are then used to insert the piece of
human DNA into the plasmid.

Step 3:

Place the plasmid into a bacterium
which will start to divide rapidly. As it
divides it will replicate the plasmid and
make millions of them, each with the
instruction to produce insulin. Commercial
quantities of insulin can then be produced.