What is the Genome? | -This is the Entire Genetic Material of an Organism |
What is a Chromosome? | -This is simply one Long Molecule of DNA that's Coiled up |
What is a Gene? What can Genes control? | -A Gene is a Short Length of a Chromosome, that can control the Development of Different Characteristics |
What are Alleles / Variants? | -This is simply Genes that can exist in Different Versions, which gives a Different Form of the Characteristic. Example would be Eye Colour |
What is Variation? | -This is simply the Differences of what Organisms in the Same Species look like: Example: Room full of Humans will most likely not all have the same Height, Eye Colour, Hair Colour, Same shaped nose... |
What does Genotype and Phenotype mean? | Genotype: All the Genes and Alleles that an Organism has [Coding]
Phenotype: The Characteristics that it Displays [Appearance] |
How can the Variation in the Species be Genetic? | -It can be due to the differences in the Genotype, in which will affect the Phenotype
-And the Genes can also be Inherited from the Parents as well |
How can the Variation in the Species be Environmental? | -The Phenotype can also be affected by the Conditions it lives in
-Take 2 plants, and place one with lots of Sunshine, and you can see it grow According to the Environment [Towards the Sun] and it being Green
-Place the other plant in a Dark Room, and it'll have grow Tall and Spindly, with its leaves being Yellow |
How can the Variation in the Species be a mix of Genetic and Environmental? | -The Phenotype can be determined by a Mixture of Genetic and Environmental Factors.
-Taking Maximum Height, the Genes can say how much it can grow to, but it all depends on the amount of Food taken to actually Show that Height |
What is Continuous Variation? | -This is when the Individuals in the Population can vary across a Range.
-This is more common when its 2+ Genes Influence the Characteristic, or its a Combination of Genetic and Environmental Variation
-Examples: Mass, Height, Number of Leaves on a Tree... |
What is Discontinuous Variation? | -This is when there is 2+ Distinct Categories, that can only be Appointed.
-This is more Common when its only 1 Gene influencing it, or its only a Genetic Variation
-Examples can be Blood Type for Humans; there is only 4 Types of Blood: A, B, AB or O |