B1 - You and Your genes

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What are Chromosomes?
Chromosomes are found in the nucleus of most cells. They consist of long strands of substance called DNA.
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What is a Gene?
A section of DNA that has the genetic code for making a particular protein.
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How many Chromosomes are in a human body cell?
23 pairs or 46 individual chromosomes. You get 23 from your mother and 23 from your father.
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What are Alleles?
Different versions of the same gene are called alleles. They can be either recessive or dominant.
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What is Cloning?
Cloning occurs naturally in some plants and in human identical twins, and it is now possible to clone animals artificially.
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Other cards in this set

Card 2

Front

What is a Gene?

Back

A section of DNA that has the genetic code for making a particular protein.

Card 3

Front

How many Chromosomes are in a human body cell?

Back

Preview of the front of card 3

Card 4

Front

What are Alleles?

Back

Preview of the front of card 4

Card 5

Front

What is Cloning?

Back

Preview of the front of card 5

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