B14.5-5 Cloning And Adult Cell Cloning

Question 1

What is a clone ?

Answer 1

A genetically identical individual to a given organism

Question 2

What is a natural example of a clone ?

Answer 2

Twins

Question 3

What is the big advantage of cloning plants ?

Answer 3

We know exactly what the clones characteristics will be as it’s genetically identical to the original plant

Question 4

How is tissue culture done ?

Answer 4

Plant tissue cut and divided into tiny pieces
Cuttings grown in Agar dish contains nutrients and Hormones
Each chtting gorwn is generically identical
The clones are then grown in soil

Question 5

How is plant cuttings done ?

Answer 5

Cutting take at the shoots (where meristem cells are)
Cutting is dipped in rooting powder
Contains hormone Auxin
Retain moisture with a bag overtop to allow clone to grow

Question 6

What does rooting powder do ?

Answer 6

Encourages the plant to grow and develop roots as it contains the chemical Auxin

Question 7

What does cuttings work well for?

Answer 7

If we want a few plants but it doesn’t work for large amounts

Question 8

What do the plant hormones do in tissue culture ?

Answer 8

Stimulate growth

Question 9

What and why are the conditions of tissue culture ?

Answer 9

Sterile
We have to avoid introducing any microorganism such as bacteria or fungi

Question 10

What is tissue culture useful for

Answer 10

Commercial plant nurseries
As
It allows growers to produce thousands of genetically identical plants quickly and cheaply

Preserving rare species of plants