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CH 5: Traits

Chapter in 5 our note books regarding traits & reproduction.

TermDefinition
Feature A characteristic that all members of a species have.
Trait A specific characteristic of an individual organism.
Variation Any difference in traits between individual organisms.
Function How something works.
Protein Molecules A type of large molecules that performs important functions inside organisms.
Struture The way something is shaped or constructed.
Gene An instruction for making protein molecule.
Gene Version (aka = Allele) A s pacific form of a gene that provides instructions for making a particular protein molecule.
Mutation A random change to a gene that sometimes results in a new trait.
Heterozygous Having gene versions that are different.
Homozygous Having gene versions that are the same.
Inherit To receive genes from parents.
Sexual Reproduction The process in which two parents pass on their genes to create offspring.
Asexual Reproduction The process in which only one parent passed on its genetic information to create offspring = cloning.
Recessive The trait is inherited only if the offspring inherits 2 copies of the allele for that trait (represented by lower case letters)
Dominant The trait is inherited as long as the offspring receives at least one copy of the allele for that trait (represented with capitol letters)
Chromosome A long piece of DNA that contains many genes.
DNA (deoxyribonucleicacid) A type of molecule that genes and chromosomes are made of.
Created by: g27johnm
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