BSC 101 Exam 1quetions with accurate answers
3 shapes of domain bacteria Ans✓✓✓ 1. spheres, often called cocci- the
bacteria found in strep throat
2. rod shaped- bacilli
3. spiral- sparilla
allele Ans✓✓✓ different versions of genes (brown eyes, blue eyes)
allele frequencies Ans✓✓✓ -the frequency of an allele in a population
-has nothing to do with dominance and recessiveness
-it is calculated by counting the number of times an allele occurs in a
population and dividing by the total number of occurrences of all alleles
for that gene
allopatric speciation (macroevolution) Ans✓✓✓ 1. populations become
geographically separated
2. gene flow is interrupted
3. genetic and phenotypic changes accumulate
4. reproduction becomes less and less likely, and eventually impossible
= TWO species
archaea (prokaryote) Ans✓✓✓ single-celled organisms without nuclei
and include many extremophiles (organisms that like to live in extreme
conditions), harsh environments such as hot springs
, asexual reproduction vs. sexual reproduction Ans✓✓✓ asexual (single-
cell organism, prokaryotes)
- vegetative
- cloning
- offsprings are genetically identical to parents
- cells breaking off from the parent organism and starting to grow a new
cell in another location
sexual (two parents, eukaryotes)
-union of gametes (sperm, egg/ovum, fertilization)
-offspring are genetically unique
bacteria (prokaryote) Ans✓✓✓ no nuclei, single-celled organisms
benefits and outcomes Ans✓✓✓ develop new technology, build
knowledge, address societal issues, inform policy*, satisfy curiosity,
solve everyday problems
biological organization levels Ans✓✓✓ 1. domain (dear)
2. kingdom (king)
3. phylum (phillip)
4. class (came)
5. order (over)
6. family (for)
3 shapes of domain bacteria Ans✓✓✓ 1. spheres, often called cocci- the
bacteria found in strep throat
2. rod shaped- bacilli
3. spiral- sparilla
allele Ans✓✓✓ different versions of genes (brown eyes, blue eyes)
allele frequencies Ans✓✓✓ -the frequency of an allele in a population
-has nothing to do with dominance and recessiveness
-it is calculated by counting the number of times an allele occurs in a
population and dividing by the total number of occurrences of all alleles
for that gene
allopatric speciation (macroevolution) Ans✓✓✓ 1. populations become
geographically separated
2. gene flow is interrupted
3. genetic and phenotypic changes accumulate
4. reproduction becomes less and less likely, and eventually impossible
= TWO species
archaea (prokaryote) Ans✓✓✓ single-celled organisms without nuclei
and include many extremophiles (organisms that like to live in extreme
conditions), harsh environments such as hot springs
, asexual reproduction vs. sexual reproduction Ans✓✓✓ asexual (single-
cell organism, prokaryotes)
- vegetative
- cloning
- offsprings are genetically identical to parents
- cells breaking off from the parent organism and starting to grow a new
cell in another location
sexual (two parents, eukaryotes)
-union of gametes (sperm, egg/ovum, fertilization)
-offspring are genetically unique
bacteria (prokaryote) Ans✓✓✓ no nuclei, single-celled organisms
benefits and outcomes Ans✓✓✓ develop new technology, build
knowledge, address societal issues, inform policy*, satisfy curiosity,
solve everyday problems
biological organization levels Ans✓✓✓ 1. domain (dear)
2. kingdom (king)
3. phylum (phillip)
4. class (came)
5. order (over)
6. family (for)
