BIO 2150 EXAM 1 VERIFIED STUDY GUIDE
Observation - Answers - the act of viewing the world around us
Hypothesis - Answers - a tentative explanation for observation
Experimentation - Answers - a disciplined and controlled way of asking and answering
questions about the world in an unbiased manner
What causes stomach ulcers? - Answers - increase acidity in stomach or excess acid
Important aspects of experimental design - Answers - 1. testable hypothesis
2. control and treatment groups
Characterisitics of living organisms - Answers - - complex
- spatial organization
- change and respond to environment
- reproduce
- evolve
Redi and Pasteur - Answers - proved spontaneous generation does not exist
-life arises only from life
Cells - Answers - the simplest self-replicating entity that can exist as an independent
unit of life
Features of cells - Answers - -can store and transmit information
-have a plasma membrane
-can harness energy from the environment
Information flow: - Answers - DNA---(transcription)---RNA---(translation)---Protein
Plasma membrane - Answers - -defines cells
-mediates the movement of molecules into and out of the cell
Energy comes from... - Answers - -sun
-chemical compounds
Metabolism - Answers - the sum of all chemical reactions, reactions required to sustain
life
Do viruses store and transmit info? - Answers - yes
Are viruses separated from the environment? - Answers - yes
, Do viruses reproduce? - Answers - yes most have host
Can viruses harvest energy? - Answers - no
evolution - Answers - -change over time
-both the unity and diversity of life are explained by the process of evolution
Natural selection - Answers - environmental variation
genetic variation
Genotype - Answers - the genetic makeup of a cell or organism
Phenotype - Answers - physical appearance of an organism, influenced by the genotype
and the environment
Mutation - Answers - a rare variation on the DNA sequence
Gene - Answers - a unit of heredity, DNA sequence that codes for RNA
Alleles - Answers - different forms of a gene
Homozygous - Answers - individuals have two copies of the same allele (aa)
Heterozygous - Answers - individuals have two different alleles (Aa)
What is a gene? - Answers - a section of DNA that codes for RNA
Species - Answers - a group of organisms capable of interbreeding
Population - Answers - interbreeding groups of organisms of the same species living in
the same geographical area
Population genetics - Answers - the study of patterns of genetic variation
Gene pool - Answers - collection of all alleles present in all individuals in a species
Recombination occurs in... - Answers - meiosis
Germ-line - Answers - egg and sperm
Somatic - Answers - tissue (body)
Allele frequency - Answers - # of copies of an allele/total # of alleles in a population
Observation - Answers - the act of viewing the world around us
Hypothesis - Answers - a tentative explanation for observation
Experimentation - Answers - a disciplined and controlled way of asking and answering
questions about the world in an unbiased manner
What causes stomach ulcers? - Answers - increase acidity in stomach or excess acid
Important aspects of experimental design - Answers - 1. testable hypothesis
2. control and treatment groups
Characterisitics of living organisms - Answers - - complex
- spatial organization
- change and respond to environment
- reproduce
- evolve
Redi and Pasteur - Answers - proved spontaneous generation does not exist
-life arises only from life
Cells - Answers - the simplest self-replicating entity that can exist as an independent
unit of life
Features of cells - Answers - -can store and transmit information
-have a plasma membrane
-can harness energy from the environment
Information flow: - Answers - DNA---(transcription)---RNA---(translation)---Protein
Plasma membrane - Answers - -defines cells
-mediates the movement of molecules into and out of the cell
Energy comes from... - Answers - -sun
-chemical compounds
Metabolism - Answers - the sum of all chemical reactions, reactions required to sustain
life
Do viruses store and transmit info? - Answers - yes
Are viruses separated from the environment? - Answers - yes
, Do viruses reproduce? - Answers - yes most have host
Can viruses harvest energy? - Answers - no
evolution - Answers - -change over time
-both the unity and diversity of life are explained by the process of evolution
Natural selection - Answers - environmental variation
genetic variation
Genotype - Answers - the genetic makeup of a cell or organism
Phenotype - Answers - physical appearance of an organism, influenced by the genotype
and the environment
Mutation - Answers - a rare variation on the DNA sequence
Gene - Answers - a unit of heredity, DNA sequence that codes for RNA
Alleles - Answers - different forms of a gene
Homozygous - Answers - individuals have two copies of the same allele (aa)
Heterozygous - Answers - individuals have two different alleles (Aa)
What is a gene? - Answers - a section of DNA that codes for RNA
Species - Answers - a group of organisms capable of interbreeding
Population - Answers - interbreeding groups of organisms of the same species living in
the same geographical area
Population genetics - Answers - the study of patterns of genetic variation
Gene pool - Answers - collection of all alleles present in all individuals in a species
Recombination occurs in... - Answers - meiosis
Germ-line - Answers - egg and sperm
Somatic - Answers - tissue (body)
Allele frequency - Answers - # of copies of an allele/total # of alleles in a population
