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Transcript
Traits and Inheritance 4.2 Gene- instructions for inherited traits. (like a recipe) Allele- different versions of the same gene. Phenotype- how the trait is seen. For example the purple flower. Genotype- how the genes are written. The genotype for a purple flower would be Pp or PP. Homozygous-the genes are the same: PP or pp Heterozygous-the genes are different Pp Punnett Square- an organizer that helps display the combinations of offspring characteristics from the parents information. Probability- the mathmatical chance of something happening. Incomplete dominance- when multiple alleles play a role in the phenotype. For example a red flower crossing with a white flower creating a pink flower. Both colors played a part in the outcome. Some gene influences more than one trait. For example the gene that influences the tigers fur to be white it also influences the eyes to be blue. Some traits are a result of multiple genes working together. For example eye color is a result of 2 or more genes, that is why eye color varies greatly. Environment can also play a role in the outcome. For example a person may have the genetics to be tall but a poor diet will not allow a person to grow as tall.
