Straighterline Statistics Final Exam Latest
Update 2025-2026 60 Questions and 100%
Verified Correct
The ___ is all of the genetic material of a cell -100%Correctanswer-
genome
All of the following pertain to nitrogenous bases except... -
100%Correctanswer- guanine pairs with uracil
Semiconservative replication refers to... -100%Correctanswer- an original
parent DNA strand and one newly synthesized DNA strand comprising a
new DNA molecule
The most serious type of mutation is a ___ mutation -100%Correctanswer-
frameshift
The activation of a prophage is called... -100%Correctanswer- induction
Endospores are -100%Correctanswer- metabolically inactive, resistant to
heat and chemical destruction, resistant to destruction by radiation, living
structures
The endosymbiotic theory has been developed to explain the emergence
of... -100%Correctanswer- eukaryotes
A treatment for bacterial infections from the early 20th century has made a
comeback; the use of bacterial viruses to eliminate bacterial infections.
Which explanation most accurately describes the reason for return of this
treatment? -100%Correctanswer-
A negative RNA virus must first -100%Correctanswer- synthesize a
positive RNA copy of its genome
A mutation that changes a normal codon to a stop codon is called a ___
mutation -100%Correctanswer- nonsense
,Before the advent of biotechnology, diabetics would use insulin harvested
from cows. Now they receive human insulin produced through... -
100%Correctanswer- recombinant DNA technology
Genetically modified organisms include... -100%Correctanswer- bacteria,
viruses, plants and nonhuman animals
Thermococcus litoralis and Thermus aquaticus are thermophillic bacteria
that are -100%Correctanswer- sources of heat-stable DNA polymerases
Labeled, known, short stretches of DNA used to detect a specific sequence
of nucleotides in a mixture are known as... -100%Correctanswer- gene
probes
Which of the following is a promising treatment for stopping the expression
of a unwanted gene? -100%Correctanswer- Antisense therapy
In the nitrogen cycle, which of the following steps involves removal of
nitrogen from the atmosphere by bacteria? -100%Correctanswer- Nitrogen
Fixation
If enough H+ ions are added to pure water to raise the H+ concentration of
the solution to ten times higher than the original concentration, what is the
resulting OH- concentration of the solution? -100%Correctanswer- 10-8 M
Fungi are able to reproduce asexually by creating conidiospores and
sporangiospores. Which of the following is an accurate explanation for why
it is advantageous that they are also capable of sexual reproduction? -
100%Correctanswer- Offspring from two parents may have variations in
form and function that contribute to survival of the species.
In a laboratory bacterial cell culture that has been infected by a virus,
plaques are areas in which... -100%Correctanswer- the virus has spread
and left behind the remains of dead cells.
The sun's energy is delivered as discrete packets that travel as waves and
are called -100%Correctanswer- Photons
, What is a characteristic of aerobic respiration? -100%Correctanswer- The
process includes glycolysis, the Krebs cycle, and the electron transport
chain.
In completing protein synthesis in a prokaryote, what basic message is
carried by a specialized codon that has no corresponding tRNA? -
100%Correctanswer- "Terminate here."
Microbial drug resistance can be caused by mutations or by introduction of
new genes into a population. Which of the following can only be caused by
the introduction of new genes into a population? -100%Correctanswer-
new enzymes that inactivate the drug are synthesized
Why do the hands, feet, and breasts have more lymphatic vessels for host
defense than other areas of the human body? -100%Correctanswer- They
have a high risk for infection due to frequent contact.
Penicillin functions as an antimicrobial agent by inhibiting bacterial... -
100%Correctanswer- cell wall synthesis.
Which class of eukaryotic microorganisms can be subdivided into groups
such as Mastigophora, Sarcodina, Ciliophora, and Apicomplexa? -
100%Correctanswer- Protozoa
Genetic material can be excised from one chromosome and directly
integrated into another via... -100%Correctanswer- transposons
What immune cell secretes numerous cytokines that help to coordinate the
response of other immune cells? -100%Correctanswer- TH cell
What enzymes are used to amplify DNA during PCR? -
100%Correctanswer- DNA polymerase
Which of the following is a scientific name? -100%Correctanswer-
Streptococcus pyogenes
Eosin-methylene blue agar, or EMB, is a commonly used bacteriological
medium for growing gram-negative bacteria from complex environments. It
contains two dyes, eosin and methylene blue, as well as the sugar lactose.
Eosin is a pH indicator that changes color when the medium is acidic, while
Update 2025-2026 60 Questions and 100%
Verified Correct
The ___ is all of the genetic material of a cell -100%Correctanswer-
genome
All of the following pertain to nitrogenous bases except... -
100%Correctanswer- guanine pairs with uracil
Semiconservative replication refers to... -100%Correctanswer- an original
parent DNA strand and one newly synthesized DNA strand comprising a
new DNA molecule
The most serious type of mutation is a ___ mutation -100%Correctanswer-
frameshift
The activation of a prophage is called... -100%Correctanswer- induction
Endospores are -100%Correctanswer- metabolically inactive, resistant to
heat and chemical destruction, resistant to destruction by radiation, living
structures
The endosymbiotic theory has been developed to explain the emergence
of... -100%Correctanswer- eukaryotes
A treatment for bacterial infections from the early 20th century has made a
comeback; the use of bacterial viruses to eliminate bacterial infections.
Which explanation most accurately describes the reason for return of this
treatment? -100%Correctanswer-
A negative RNA virus must first -100%Correctanswer- synthesize a
positive RNA copy of its genome
A mutation that changes a normal codon to a stop codon is called a ___
mutation -100%Correctanswer- nonsense
,Before the advent of biotechnology, diabetics would use insulin harvested
from cows. Now they receive human insulin produced through... -
100%Correctanswer- recombinant DNA technology
Genetically modified organisms include... -100%Correctanswer- bacteria,
viruses, plants and nonhuman animals
Thermococcus litoralis and Thermus aquaticus are thermophillic bacteria
that are -100%Correctanswer- sources of heat-stable DNA polymerases
Labeled, known, short stretches of DNA used to detect a specific sequence
of nucleotides in a mixture are known as... -100%Correctanswer- gene
probes
Which of the following is a promising treatment for stopping the expression
of a unwanted gene? -100%Correctanswer- Antisense therapy
In the nitrogen cycle, which of the following steps involves removal of
nitrogen from the atmosphere by bacteria? -100%Correctanswer- Nitrogen
Fixation
If enough H+ ions are added to pure water to raise the H+ concentration of
the solution to ten times higher than the original concentration, what is the
resulting OH- concentration of the solution? -100%Correctanswer- 10-8 M
Fungi are able to reproduce asexually by creating conidiospores and
sporangiospores. Which of the following is an accurate explanation for why
it is advantageous that they are also capable of sexual reproduction? -
100%Correctanswer- Offspring from two parents may have variations in
form and function that contribute to survival of the species.
In a laboratory bacterial cell culture that has been infected by a virus,
plaques are areas in which... -100%Correctanswer- the virus has spread
and left behind the remains of dead cells.
The sun's energy is delivered as discrete packets that travel as waves and
are called -100%Correctanswer- Photons
, What is a characteristic of aerobic respiration? -100%Correctanswer- The
process includes glycolysis, the Krebs cycle, and the electron transport
chain.
In completing protein synthesis in a prokaryote, what basic message is
carried by a specialized codon that has no corresponding tRNA? -
100%Correctanswer- "Terminate here."
Microbial drug resistance can be caused by mutations or by introduction of
new genes into a population. Which of the following can only be caused by
the introduction of new genes into a population? -100%Correctanswer-
new enzymes that inactivate the drug are synthesized
Why do the hands, feet, and breasts have more lymphatic vessels for host
defense than other areas of the human body? -100%Correctanswer- They
have a high risk for infection due to frequent contact.
Penicillin functions as an antimicrobial agent by inhibiting bacterial... -
100%Correctanswer- cell wall synthesis.
Which class of eukaryotic microorganisms can be subdivided into groups
such as Mastigophora, Sarcodina, Ciliophora, and Apicomplexa? -
100%Correctanswer- Protozoa
Genetic material can be excised from one chromosome and directly
integrated into another via... -100%Correctanswer- transposons
What immune cell secretes numerous cytokines that help to coordinate the
response of other immune cells? -100%Correctanswer- TH cell
What enzymes are used to amplify DNA during PCR? -
100%Correctanswer- DNA polymerase
Which of the following is a scientific name? -100%Correctanswer-
Streptococcus pyogenes
Eosin-methylene blue agar, or EMB, is a commonly used bacteriological
medium for growing gram-negative bacteria from complex environments. It
contains two dyes, eosin and methylene blue, as well as the sugar lactose.
Eosin is a pH indicator that changes color when the medium is acidic, while
