Body cells divide through MITOSIS to produce more identical cells for growth, repair and replacement, or in some cases asexual reprouction.
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What is MEIOSIS?
Cells in the reproductive organs divide by MEIOSIS to form the gametes (Sex cells)
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What happens to your chromosomes when your gametes are formed?
In MEIOSIS the genetic material is copied and then the cell divides twice to produce 4 daughter cells each with a single set of chromosomes.
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How does sexual reproduction give rise to variation?
Sexual reproduction gives rise to variety because genetic information from two parents is combined.
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What is special about stem cells?
Embryonic stem cells (from embryos) and adult stem cells (From bone marrow) can be made to differentiate into many types of different cells.
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How can we use stem cells to cure people?
Stem cells have the potential to treat previously incurable conditions. We may be able to grow nerve cells and new organs for people who need them.
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What did Mendel's experiments teach us about inheritance?
He was the first person to suggest separately inherited factors, which we now call genes.
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What is DNA?
Chromosomes are made up of large molecules of DNA
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How are specific proteins made in the body?
A gene is a small section of DNA that codes for a particular combination of amino acids, which make a specific protein.
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How is sex determined in humans?
In human body cells the sex is determined by the chromosomes with a female being ** and male being XY
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How do we predict what features a child might inherit?
If we pick apart a strand of the mother and fathers DNA and find which alleles are dominant and which are recessive we can predict the child's outcome.
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Why would you construct a genetic diagram?
To predict characteristics
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How is Polydactyly inherited?
It is caused by a dominant allele of a gene and can be inherited from only one parent.
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How is Cystic fibrosis inherited?
It is caused by a recessive allele of a gene and so must be inherited from both parents.
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Other cards in this set
Card 2
Front
What is MITOSIS?
Back
Body cells divide through MITOSIS to produce more identical cells for growth, repair and replacement, or in some cases asexual reprouction.
Card 3
Front
What is MEIOSIS?
Back
Card 4
Front
What happens to your chromosomes when your gametes are formed?
Back
Card 5
Front
How does sexual reproduction give rise to variation?
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