bio 150 homework questions with
complete solution (10 pgs)
In the Hershey-Chase experiment, the material that entered cells upon
infection by T2 virus was labeled with which radioactive isotope? - correct
answer ✔32P
- phosphorus is present in DNA as part of the phosphate group on a
nucleotide but not in viral proteins or in proteins in general.
Genes contain the information for making what classes of proteins? - correct
answer ✔all proteins
(enzymes, structural proteins, membrane proteins)
start codon - correct answer ✔AUG
stop codon - correct answer ✔UAA UAG UGA
Amino Acid - correct answer ✔ACU UGC AAA CAC GCA AUC
translation of mRNA:
5' - AUGGCAAGAAAA - 3' - correct answer ✔Met-Ala-Arg-Lys
3′−TACAGAACGGTA−5′ - correct answer ✔Met-Ser-Cys-His
which statement shows population thinking? - correct answer ✔Variation
among individuals in a species is real and important.
, These phylogenetic trees represent two interpretations of the origin of hair in
humans and dogs in which hair is or is not homologous in humans and dogs.
For each interpretation, did the most recent common ancestor of humans and
dogs have hair? Which tree is correct? - correct answer ✔If hair is
homologous in humans and dogs (left tree), their most recent common
ancestor did have hair. If hair is not homologous in humans and dogs (right
tree), their most recent common ancestor did not have hair. The left tree is
correct.
Scientific evidence documents the pattern of evolution. The evidence exists in
a variety of categories, including direct observation of evolutionary change,
the fossil record, homology, and biogeography. Sort the following examples
into the correct categories. - correct answer ✔Direct Observation of
Evolutionary Change:
- development of drug resistance in bacteria
Fossil Record:
- discovery of transitional forms of horses
- discovery of shells of extinct species
Homology:
- vestigial pelvis in right whales
- similarities in mammalian forelimbs
- same genetic code in fireflies and tobacco plants
biogeography:
- similarity of endemic island species to nearby mainland species
- the high concentration of marsupial species in Australia
complete solution (10 pgs)
In the Hershey-Chase experiment, the material that entered cells upon
infection by T2 virus was labeled with which radioactive isotope? - correct
answer ✔32P
- phosphorus is present in DNA as part of the phosphate group on a
nucleotide but not in viral proteins or in proteins in general.
Genes contain the information for making what classes of proteins? - correct
answer ✔all proteins
(enzymes, structural proteins, membrane proteins)
start codon - correct answer ✔AUG
stop codon - correct answer ✔UAA UAG UGA
Amino Acid - correct answer ✔ACU UGC AAA CAC GCA AUC
translation of mRNA:
5' - AUGGCAAGAAAA - 3' - correct answer ✔Met-Ala-Arg-Lys
3′−TACAGAACGGTA−5′ - correct answer ✔Met-Ser-Cys-His
which statement shows population thinking? - correct answer ✔Variation
among individuals in a species is real and important.
, These phylogenetic trees represent two interpretations of the origin of hair in
humans and dogs in which hair is or is not homologous in humans and dogs.
For each interpretation, did the most recent common ancestor of humans and
dogs have hair? Which tree is correct? - correct answer ✔If hair is
homologous in humans and dogs (left tree), their most recent common
ancestor did have hair. If hair is not homologous in humans and dogs (right
tree), their most recent common ancestor did not have hair. The left tree is
correct.
Scientific evidence documents the pattern of evolution. The evidence exists in
a variety of categories, including direct observation of evolutionary change,
the fossil record, homology, and biogeography. Sort the following examples
into the correct categories. - correct answer ✔Direct Observation of
Evolutionary Change:
- development of drug resistance in bacteria
Fossil Record:
- discovery of transitional forms of horses
- discovery of shells of extinct species
Homology:
- vestigial pelvis in right whales
- similarities in mammalian forelimbs
- same genetic code in fireflies and tobacco plants
biogeography:
- similarity of endemic island species to nearby mainland species
- the high concentration of marsupial species in Australia
