15254882
Description
Flashcards by Eleanor James, updated more than 1 year ago
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Created by Eleanor James
about 7 years ago
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| Question | Answer |
| Diploid | Having a full set of chromosomes (2n); having a pair of each type of chromosome |
| Carrier | Individual that carries a gene for a particular recessive trait, does not express the trait, but can pass that trait on |
| Amino Acids | Basic building blocks of protein |
| Double Helix | Two strands of nucleotides wound around each other - structure of DNA |
| Fertilisation | The joining of male and female gamete |
| Offspring | Product of reproduction - a new organism produced by one or more parents |
| Proteins | Made up of amino acids. There are many types and all have important roles in living systems |
| Punnett Square | A chart that shows all the possible combinations of alleles that can result from a genetic cross |
| Semi-conservative replication | In each new DNA double helix, one strand is from the original molecule, and one strand is new |
| Sex Chromosomes | Chromosomes X and Y that determine the sex of an individual |
| Crossing Over | Exchange of genetic material between homologous chromosomes |
| Mutation | Process responsible for forming new alleles |
| Variation | Important to population and species in a changing environment |
| Changing Environment | E.g pest infestation, disease, drought or flood |
| Independent Assortment | Each homologous pair of chromosomes lines up at the equator - maternal or paternal - independently of other homologous pairs |
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