Select the correct statement.

Easy

A

Genetic engineering works only on animals and has not yet been successfully used on plants.
B

There are no risks associated with DNA technology.
C

The first step in PCR is heat which is used to separate both the strands of target DNA.
D

DNA from one organism will not bond to DNA from another animal.

Solution

Genetic engineering works both on animals and plants successfully.
There are risks involved with DNA technology.
DNA from one organism can be bond with DNA of another organism when they are both cleaved with same restriction enzyme.
The first step in PCR is to separate both the strands of DNA i.e., denaturation.

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