Bio 1020 Midterm 1 Questions And Answers
100% Correct | New Update 2025
Darwins Phrase for Evolution - ANSWER descent with modification
Cuvier
Hutton
Lyell - ANSWER Fossils showed that older fossils less similar
Described slow continuous geological change
Believed same processes were working today
Lamark - ANSWER use and disuse, inheritance of acquired characteristics
Uniformitarianism - ANSWER Lyell theory that mechanisms of change are
constant over time
MRSA - ANSWER The rise of MRSA shows that the bacterium that cause MRSA
have evolved to become more resistant to more antibiotics
Main Mechanisms of evolutionary change (3) - ANSWER Natural Selection
Genetic Drift
Gene Flow
, Why doesn't natural selection produce perfect organisms? (4) - ANSWER
Selection can only act on existing variants
Evolution is limited by historical constraints-cant make new phenotype
Adaptations are often comprises
Chance, Natural selection and environment interact-gene flow
Where does genetic variation come from? - ANSWER Mutations, Gene
duplication and sexual reporduction
3 ways sexual reproduction increases genetic diversity - ANSWER Crossing over
Independent assortment
Fertilization
Mendelian Processes alone do not alter allele frequencies - ANSWER If these
were the only processes at work then there would be no change to the allele
frequency.
Peter Buri - ANSWER His study testing allele frequency changes. Demonstrated
that allele frequencies change faster when in a small population
Immigration effects on Parus major - ANSWER Immigration preference to the
central population causes mainland alleles to make their way into that population
more increasing the mortality rate.
Malthusian Struggle - ANSWER This is the struggle for existence and is a
misnomer for natural selection
100% Correct | New Update 2025
Darwins Phrase for Evolution - ANSWER descent with modification
Cuvier
Hutton
Lyell - ANSWER Fossils showed that older fossils less similar
Described slow continuous geological change
Believed same processes were working today
Lamark - ANSWER use and disuse, inheritance of acquired characteristics
Uniformitarianism - ANSWER Lyell theory that mechanisms of change are
constant over time
MRSA - ANSWER The rise of MRSA shows that the bacterium that cause MRSA
have evolved to become more resistant to more antibiotics
Main Mechanisms of evolutionary change (3) - ANSWER Natural Selection
Genetic Drift
Gene Flow
, Why doesn't natural selection produce perfect organisms? (4) - ANSWER
Selection can only act on existing variants
Evolution is limited by historical constraints-cant make new phenotype
Adaptations are often comprises
Chance, Natural selection and environment interact-gene flow
Where does genetic variation come from? - ANSWER Mutations, Gene
duplication and sexual reporduction
3 ways sexual reproduction increases genetic diversity - ANSWER Crossing over
Independent assortment
Fertilization
Mendelian Processes alone do not alter allele frequencies - ANSWER If these
were the only processes at work then there would be no change to the allele
frequency.
Peter Buri - ANSWER His study testing allele frequency changes. Demonstrated
that allele frequencies change faster when in a small population
Immigration effects on Parus major - ANSWER Immigration preference to the
central population causes mainland alleles to make their way into that population
more increasing the mortality rate.
Malthusian Struggle - ANSWER This is the struggle for existence and is a
misnomer for natural selection
