BSC 108 EXAM 3 KENNEDY EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+ 2025 - 2026
what are the four types of evidence that supports the theory of
evolution - ANSWERS-biogeographical, embryological, fossils, DNA
and biochemical evidence
evidence that supports the theory of evolution (biogeographical) -
ANSWERS-Geographic distribution of species, that suggested that
todays organisms evolved from ancestral forms.
evidence that supports the theory of evolution (embryological) -
ANSWERS-Embryos of many different species show similarities,
which implies they share a common origin.
evidence that supports the theory of evolution (fossils) - ANSWERS-
Similarities between living and nonliving organisms.
,evidence that supports the theory of evolution (DNA and
biochemical evidence) - ANSWERS-Many of the same molecules and
biochemical processes occur within all living organisms, from single-
cell bacteria to humans.
homologies, or homologous structures - ANSWERS-similarities
among living organisms that are due to shared ancestry
analogies, or analogous structures - ANSWERS-similarities among
living organisms that are due to similar environmental pressures
and natural selection (convergent evolution), not shared ancestry
What is the replication forks? - ANSWERS-It is the location where
the parent cells is separating and the complimentary nucleotide is
being added creating the two new strands
How does DNA determine specific traits (phenotypes)? - ANSWERS-
Phenotypes arise from the actions of a wide variety of proteins. To
get these proteins this is what happens. DNA transfers genetic
information through transcription to RNA. Then through translation
genetic info is transferred from RNA into a polypeptide (protein
strand)
What is the structure of RNA? - ANSWERS-It is a single-stranded
nucleic acid.
it is the same as DNA except it uses ribose instead of deoxyribose in
the sugar phosphate backbone and it uses uracil instead of thymine
, tRNA - ANSWERS-transfer RNA: translation of the genetic message
carried in the mRNA into the amino acid language of proteins
(converts the three-letter words, codons, of nucleic acids to the
amino acid words of proteins)
What is the function of mRNA? - ANSWERS-Messenger molecules
carry the coding sequences for protein synthesis and are called
transcripts.
rRNA - ANSWERS-ribsosomal RNA
makes up ribosomes which are the organelles in the cytoplasm that
coordinate the functioning of mRNA and tRNA and actually make
polypeptides
The structure of a strand of DNA. - ANSWERS-it is a double helix,
like a twisted ladder.
the ladder rings are nucleotide subunits and they have a covalent
bond to the sugar phosphate backbone (made of deoxyribose and a
phosphate group)
What are the nucleotide subunits? - ANSWERS-adenine, guanine,
cytosine, and thymine
How are the subunits held together? - ANSWERS-through a
hydrogen bond
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+ 2025 - 2026
what are the four types of evidence that supports the theory of
evolution - ANSWERS-biogeographical, embryological, fossils, DNA
and biochemical evidence
evidence that supports the theory of evolution (biogeographical) -
ANSWERS-Geographic distribution of species, that suggested that
todays organisms evolved from ancestral forms.
evidence that supports the theory of evolution (embryological) -
ANSWERS-Embryos of many different species show similarities,
which implies they share a common origin.
evidence that supports the theory of evolution (fossils) - ANSWERS-
Similarities between living and nonliving organisms.
,evidence that supports the theory of evolution (DNA and
biochemical evidence) - ANSWERS-Many of the same molecules and
biochemical processes occur within all living organisms, from single-
cell bacteria to humans.
homologies, or homologous structures - ANSWERS-similarities
among living organisms that are due to shared ancestry
analogies, or analogous structures - ANSWERS-similarities among
living organisms that are due to similar environmental pressures
and natural selection (convergent evolution), not shared ancestry
What is the replication forks? - ANSWERS-It is the location where
the parent cells is separating and the complimentary nucleotide is
being added creating the two new strands
How does DNA determine specific traits (phenotypes)? - ANSWERS-
Phenotypes arise from the actions of a wide variety of proteins. To
get these proteins this is what happens. DNA transfers genetic
information through transcription to RNA. Then through translation
genetic info is transferred from RNA into a polypeptide (protein
strand)
What is the structure of RNA? - ANSWERS-It is a single-stranded
nucleic acid.
it is the same as DNA except it uses ribose instead of deoxyribose in
the sugar phosphate backbone and it uses uracil instead of thymine
, tRNA - ANSWERS-transfer RNA: translation of the genetic message
carried in the mRNA into the amino acid language of proteins
(converts the three-letter words, codons, of nucleic acids to the
amino acid words of proteins)
What is the function of mRNA? - ANSWERS-Messenger molecules
carry the coding sequences for protein synthesis and are called
transcripts.
rRNA - ANSWERS-ribsosomal RNA
makes up ribosomes which are the organelles in the cytoplasm that
coordinate the functioning of mRNA and tRNA and actually make
polypeptides
The structure of a strand of DNA. - ANSWERS-it is a double helix,
like a twisted ladder.
the ladder rings are nucleotide subunits and they have a covalent
bond to the sugar phosphate backbone (made of deoxyribose and a
phosphate group)
What are the nucleotide subunits? - ANSWERS-adenine, guanine,
cytosine, and thymine
How are the subunits held together? - ANSWERS-through a
hydrogen bond
