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Cards In This Set
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What is DNA?
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DNA is the genetic material that is found in the nucleus of cells.
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Draw a diagram below using the following terms;
nucleotide, triplet, sugar, phosphate, bases(A,T,G,C), base pair. |
Label.
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Explain the Structure of DNA.
use the following terms as before. & double helix. |
DNA is a double helix because it twists.
DNA twists like a twisted ladder. DNA is made up of nucleotides and base pairs. DNA sides are made of sugar and phosphate. Base pairs are always T with A, and C with G. Or the other way round. Base pairs are made up of four elements: Nitrogen, Oxygen, Carbon and Hydrogen. |
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Why is DNA important?
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Organisms are made up of cells which contain DNA.
Cells use the DNA genetic code to determine the characteristics of an organism. |
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What is this?
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DNA in a cell.
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DNA is made up of.....?
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DNA is made up of a sequence of chemicals called bases which make up a code.
Cells use the code to build characteristics. For example; eye colour, tongue rolling, hair colour etc. |
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What is DNA replication?
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Making new copies of DNA.
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How does DNA replication occur?
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The DNA double helix unwinds and the two strands are separated.
The two original strands of DNA act as templates to make new strands that match |
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Explain why DNA replication is important.
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DNA replication is important because it is a "must" to make new cells. This lets us repair damaged cells like cuts and bruises. Without DNA replication, an organism cannot make a new cell.
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What is Mitosis?
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Mitosis is the process of making new cells.
Its the process of cell division for growth and repair. Mitosis produces two identical cells from a single cell. It involves making an exact copy of the original cells, so two new identical cells can be produced. |
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What substance carries the genetic code in a chromosome?
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DNA
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