Clones in nature

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  • Created by: mitchell
  • Created on: 21-01-13 12:46
What is a clone?
Clones are genes, cells or whole organisms that carry IDENTICAL GENETIC MATERIAL because they originate from the same DNA
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Name the three advantages to asexual reproduction?
It is quick, it can be completed if sexual reproduction fails or is not possible, all offspring have the genetic information to enable them to survive in their environment
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Name the main disadvantage of asexual reproduction
It lacks genetic variety, so if the organism has a genetic weekness it will be present in all the offspring
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Define vegetative propegation
Vegetative propegation is asexual reproduction in plant making use of specialised vegetative structures that grow to form new and seperate individuals
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What is meant by the term meristematic tissue?
Growth points in the plant where immature cells are still capable of dividing (by mitosis) and differentiating (this is where they specialise)
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State an advantage to an elm tree of vegetative propagation
Root sucker help the elm spread, when the tree is stressed or dies, these root suckers spread and grow around the original plant. This is called a clonal patch.
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State a disadvantage to an elm tree of vegetative propagation
If the trees were to catch elms disease, the new elm trees would also die in turn as the root suckers are clones of the parent plant
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Give an example of a root sucker, a tuber, a bulb and a runner
An English elm, potatoes, daffodils and strawberries
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What is the name of the process whereby eukaryotes undergo asexual reproduction?
Mitosis
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Card 2

Front

Name the three advantages to asexual reproduction?

Back

It is quick, it can be completed if sexual reproduction fails or is not possible, all offspring have the genetic information to enable them to survive in their environment

Card 3

Front

Name the main disadvantage of asexual reproduction

Back

Preview of the front of card 3

Card 4

Front

Define vegetative propegation

Back

Preview of the front of card 4

Card 5

Front

What is meant by the term meristematic tissue?

Back

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