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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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chromosomes, what do they do? |
chromosomes carry the genes that contain the instructions for making both new cells and all the tissues and organs needed to make an entire new you |
carry genes, make new |
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what’s a gene (1) |
a gene is a small packet of information that controls a characteristic (or part of) of your body |
characteristics |
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what are genes (2) |
it’s a section of DNA, the unique molecule that makes up your chromosomes |
chromosomes |
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what are the two types of cell devision |
Mitosis and meiosis |
Mi..... & Me..... |
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what is mitosis |
the division of a cell in to two genetically identical daughter cells (essentially clones) |
clones |
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when does cell division occur |
This occurs during growth or to produce replacement cells |
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when does cell division occur |
This occurs during growth or to produce replacement cells |
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what reproduction does this happen in? |
asexual reproduction (no fusion of gametes - sex cells) |
sexual or asexual? |
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when does cell division occur |
This occurs during growth or to produce replacement cells |
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what reproduction does this happen in? |
asexual reproduction (no fusion of gametes - sex cells) |
sexual or asexual? |
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name the four stages of mitosis |
Prophase Metaphase Anaphase Telophase |
P M A T |
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prophase |
Replicated chromosomes supercoil (thicken & shorten - They are visible) |
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Metaphase |
replicated chromosomes line up down the middle of the cell (the equator) |
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Metaphase |
replicated chromosomes line up down the middle of the cell (the equator) |
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anaphase |
The replicas of the chromosomes are pulled apart from eachother towards opposite poles of the cell. |
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Telophase |
two new nuclei are formed |
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the cell cycle |
the DNA is replicated the long DNA strands coil up into chromosomes the nuclear membrane breaks down and the chromosomes line up along the centre of the cell. (the equator) cell fibres attach to the chromosomes and pull them apart. membranes form around each set of chromosomes, making the nuclei of the new cells the cytoplasm then divides and two new identical daughter cells are made |
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