BIO 148 FINAL EXAM QUESTIONS
WITH CORRECT ANSWERS
what differs viruses from living organisms - Correct Answers -they do not contain
ribosomes
Characteristics of life - Correct Answers -reproduce, grow, respond, cells, DNA, energy
cell theory - Correct Answers -A widely accepted explanation of the relationship
between cells and living things
Evolution - Correct Answers -Change in a kind of organism over time; process by which
modern organisms have descended from ancient organisms.
Fitness - Correct Answers -how well an organism can survive and reproduce in its
environment
natural selection - Correct Answers -A process in which individuals that have certain
inherited traits tend to survive and reproduce at higher rates than other individuals
because of those traits.
natural selection changes the genetic characteristics of the - Correct Answers -
population, causes population to evolve
natural selection acts on - Correct Answers -individuals
fitness is determined by - Correct Answers -amount of offspring produced.
what is archae most. closely related too - Correct Answers -eukarya
Gram-positive bacteria - Correct Answers -Bacteria that have simple cell walls with
much peptidoglycan.
Gram-negative bacteria - Correct Answers -Bacteria that have complex cell walls with
less peptidoglycan but with lipopolysaccharides.
Very toxic and hard to treat.
Archaea - Correct Answers -Domain of unicellular prokaryotes that have cell walls that
do not contain peptidoglycan
, Eukarya - Correct Answers -Domain of all organisms whose cells have nuclei, including
protists, plants, fungi, and animals
Bacteria - Correct Answers -(microbiology) single-celled or noncellular spherical or
spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission
inner membrane of mitochondria - Correct Answers -developed from the plasma
membrane of bacteria
Clade - Correct Answers -A group of species that includes an ancestral species and all
its descendants.
monophyletic group - Correct Answers -ALL descendants came from one common
ancestor
Watson and Crick - Correct Answers -Developed the double helix model of DNA.
Rosalind Franklin - Correct Answers -Woman who generated x-ray images of DNA, she
povided Watson and Crick with key data about DNA
Meselson and Stahl - Correct Answers -Determined that DNA replication is
semiconservative.
sister chromatids - Correct Answers -Identical copies of a chromosome; contains 2 DNA
molecules and 2 single DNA strands
DNA: parts of nucleotide - Correct Answers -deoxyribose sugar, phosphate, nitrogen
base
chromosome - Correct Answers -single, long DNA molecule that is wrapped around
proteins
replicated chromosome - Correct Answers -Chromosome after DNA synthesis.
Humans contain _____ chromosomes - Correct Answers -46
There are 22 pairs of ___________ and one pair of ___________. - Correct Answers -
autosomal;sex
G1 - Correct Answers -growth
Synthesis - Correct Answers -combination
G2 - Correct Answers -Cell prepares to divide
M phase - Correct Answers -mitosis and cytokinesis
WITH CORRECT ANSWERS
what differs viruses from living organisms - Correct Answers -they do not contain
ribosomes
Characteristics of life - Correct Answers -reproduce, grow, respond, cells, DNA, energy
cell theory - Correct Answers -A widely accepted explanation of the relationship
between cells and living things
Evolution - Correct Answers -Change in a kind of organism over time; process by which
modern organisms have descended from ancient organisms.
Fitness - Correct Answers -how well an organism can survive and reproduce in its
environment
natural selection - Correct Answers -A process in which individuals that have certain
inherited traits tend to survive and reproduce at higher rates than other individuals
because of those traits.
natural selection changes the genetic characteristics of the - Correct Answers -
population, causes population to evolve
natural selection acts on - Correct Answers -individuals
fitness is determined by - Correct Answers -amount of offspring produced.
what is archae most. closely related too - Correct Answers -eukarya
Gram-positive bacteria - Correct Answers -Bacteria that have simple cell walls with
much peptidoglycan.
Gram-negative bacteria - Correct Answers -Bacteria that have complex cell walls with
less peptidoglycan but with lipopolysaccharides.
Very toxic and hard to treat.
Archaea - Correct Answers -Domain of unicellular prokaryotes that have cell walls that
do not contain peptidoglycan
, Eukarya - Correct Answers -Domain of all organisms whose cells have nuclei, including
protists, plants, fungi, and animals
Bacteria - Correct Answers -(microbiology) single-celled or noncellular spherical or
spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission
inner membrane of mitochondria - Correct Answers -developed from the plasma
membrane of bacteria
Clade - Correct Answers -A group of species that includes an ancestral species and all
its descendants.
monophyletic group - Correct Answers -ALL descendants came from one common
ancestor
Watson and Crick - Correct Answers -Developed the double helix model of DNA.
Rosalind Franklin - Correct Answers -Woman who generated x-ray images of DNA, she
povided Watson and Crick with key data about DNA
Meselson and Stahl - Correct Answers -Determined that DNA replication is
semiconservative.
sister chromatids - Correct Answers -Identical copies of a chromosome; contains 2 DNA
molecules and 2 single DNA strands
DNA: parts of nucleotide - Correct Answers -deoxyribose sugar, phosphate, nitrogen
base
chromosome - Correct Answers -single, long DNA molecule that is wrapped around
proteins
replicated chromosome - Correct Answers -Chromosome after DNA synthesis.
Humans contain _____ chromosomes - Correct Answers -46
There are 22 pairs of ___________ and one pair of ___________. - Correct Answers -
autosomal;sex
G1 - Correct Answers -growth
Synthesis - Correct Answers -combination
G2 - Correct Answers -Cell prepares to divide
M phase - Correct Answers -mitosis and cytokinesis
