a substance that cannot be broken down chemically into any other substance
What is an element
100
little granular bodies where proteins are made
What is a ribosome
100
a nitrogen-containing molecule
What is a base
100
a group of several genes and the elements that control their expression as a unit
What is a operon
200
the process of scientific thinking and examination
What is the scientific method
200
particles with a positive charge
What is a proton
200
a membrane-enlosed structure that contains linear strands of DNA
What is a nucleus
200
a macromolecule that stores information
What is DNA
200
the alteration of bases in an organisms DNA
what is a mutation
300
knowledge that is based on experience and observations that are rational, testable, and repeatable
What is empirical knowledge
300
particles with no charge
What is a neutron
300
states that energy can't be created or destroyed
what is the first law of thermodynamics
300
the full set of DNA present in an individual organism
What is a genome
300
a consequence of passing characteristics from parents to offspring through genes
What is heredity
400
conduct a critical experiment
What is the 4th step of the scientific method
400
particles that are negatively charged
What is an electron
400
surface transmembrane proteins that bind to chemicals in the cells external environment
What is receptor proteins
400
the process in which a copy of a gene's base sequence is made
What is transcription
400
the idea that of the two copies of each gene everyone carries, only one of the two alleles that gets put into each gamete is significant and important enough
What is Mendel's law of segregation
500
an explanatory hypothesis for a natural phenomena
What is a theory
500
an atom that has extra neutrons or fewer neutrons than the number of protons
What is an isotope
500
an explanation for the presence of two organelles in eukaryotes
What is endosymbiosis
500
a part of the DNA molecule that indicates the start of a gene