variation

Cards (15)

  • variation is the differences between members of a particular species
  • characteristic is feature of an organism it can either be something we can see like hair colour and height or something we cant like blood group
  • continuous variation is a type of variation, it spans over a wide range of differences of the same characteristic like height and weight
  • discontinuous variation is a type of variation in which a feature falls under distinct groups like attached or detached earlobe or the ability to roll your tounge
  • define variation
    it is the differences between members of a particular species
  • environment is a cause of variation where stuff like amount of food and water can also change an organism
  • genes. is also a cause for variation where an offspring gets is genes passed on from its parents
  • in an organism 50%. of the dna is the dads and 50% is the mothers
  • an offspring is different from its parents because it doesn't have 100% of a parents genes
  • eye colour, blood group, attached ear lobes and an animals fur colour are all genetic only variations
  • tattoos, scars, language spoken, skin tonation and the colour of a hydrangea flower(blue is acid soil, pink in alkaline soil) are all exampls. of environmental only variation
  • height, weight, size of plant and hair colour(can lighten during summer or can be dyed)are all examples of variations affected by both genetic and environmental variation
  • give four examples of genetic only variation
    eye colour blood group animal fur colour attached ear lobes
  • Continuous variation is influenced by genes and environment, resulting in a range of phenotypes between two extremes, e.g. height in humans
  • species is a group of organisms that can freely/naturally interbreed to produce fertile offspring