Karteikarten
Level 1 Biology Flashcards (SET ONE)
Karten in diesem Stapel (16)
- 1Asexual ReproductionReproduction involving only one parent (usually female) - offspring genetically identical to the parent and to each other
- 2Sexual ReproductionReproduction involving two parents - offspring different from the parent and to each other
- 3CloneAn organism produced asexually from one parent - offspring genetically identical to both its parents and siblings
- 4TraitA genetically determined characteristic
- 5MutationA permanent change in the base sequence of DNA
- 6AlleleDifferent forms of the same gene - they can be dominant or recessive
- 7GenotypeThe particular alleles of an organism
- 8PhenotypeThe observable characteristics of an organism as a result of its genotype
- 9Pure breedingIndividuals that are homozygous - will always produce offspring with the same genotype when crossed together
- 10HomozygousAn individual with two alleles that are the same for a particular trait
- 11HeterozygousAn individual with two alleles that are different for a particular trait
- 12Test CrossCross between an unknown genotype organism and a homozygous recessive to work out the genotype from the offspring
- 13DominantAllele which is always expressed even if only one is present - written with an upper-case letter e.g 'A'
- 14RecessiveAllele which is only expressed when two of them are present - written with a lower-case letter e.g 'a'
- 15Pedigree ChartDiagram/family tree that shows the phenotypes of related individuals
- 16HaploidHaving a single set of chromosomes (n)
Informationen
- Beschreibung
- Terms and definitions for the end of year Level 1 biology exam
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- Eleanor James
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