What are the chances of a child inheriting HD if one of their parents have the faulty gene
50%
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During IVF, what is the process of testing embryos to see if they have a genetic disorder?
pre-implantation genetic diagnosis (PGD)
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Give another use for genetic testing
Children and adults can be checked to see if they carry alleles for genetic disorders
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Issues surrounding genetic testing
1) Tests aren't 100% safe 2) Tests aren't 100% accurate 3) Insurance companies might refuse to give life insurance
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Definition of 'clone'
Clones are Genetically Identical organisms - they have the same genes and alleles of those genes
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How are identical twins formed?
Identical twins are also clones. The embryo splits into two
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Definition of asexual reproduction
Only one parent, and the offspring are genetically identical to the parent
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What are Stem cells?
During the development of an embryo most of the cells become specialised. They cannot later change to become a different type of cell. But embryos contain a special type of cell called stem cells.These can grow into any type of cell found in the body
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Differences between the two main types of stem cells
Embryonic stem cells = unspecialized cells found in early embryos Adult stem cells = unspecialized cells found in adult animals
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How can stem cells treat an illness?
Embryonic stem cells can be used to replace faulty cells
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Other cards in this set
Card 2
Front
How many chromosomes do Humans have?
Back
46, 23 pairs
Card 3
Front
What are alleles?
Back
Card 4
Front
How do genes control the different characteristics we develop?
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