1|Page
Bio 150 Exam 1 - UTK Mamantov (2026/2027) EXAM
||VERIFIED EXAM!!|| MOST RECENT EXAM ACTUAL
COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+ | GUARANTEED SUCCESS!! NEWEST EXAM!!!
Describe the purpose of a null hypothesis - Answer-The
purpose of the null hypothesis is to see if the test is
supported or not (null hypothesis states that there will be
no difference, effect, or relationship between the
variables).
How is the scientific method different from the scientific
process? - Answer-There is no order for the scientific
process as scientists tend to go back and forth while in the
scientific method it is a step by step method scientists
need to follow.
Explain why data supports or rejects hypotheses, not
"proves" them - Answer-Data supports or rejects a
hypothesis because you can never really prove a
hypothesis correct, you can only run tests to support the
hypothesis. There can always be some scenario in which
a hypothesis is incorrect.
,2|Page
Describe a control group - Answer-It is the group that is
left unchanged in an experiment. It is important because
they provide baseline measurements.
what kind of variables are of the x-axis? - Answer-
independent variables
what kind of variables are of the y-axis? - Answer-
dependent variables
What is DNA? - Answer-Deoxyribonucleic acid (DNA)
stores genetic information. DNA is a type of nucleic acid. It
is a polymer made up of monomers called nucleotides.
Describe the structure of DNA - Answer-DNA is a double
helix in which the backbone is made of alternating sugar
(deoxyribose) and phosphate groups. Attached to each
sugar is one of four bases: adenine (A), cytosine (C),
guanine (G) or thymine (T). The two strands are
connected by hydrogen bonds between
these bases. The sequence of the bases along DNA's
backbone encodes biological information, such as the
instructions for making a protein or RNA molecule.
,3|Page
What is the primary structure of DNA? - Answer-The
primary structure of DNA is a directional sugar-phosphate
backbone.
What is the secondary structure of DNA? - Answer-The
secondary structure of DNA is an antiparallel double helix.
Explain the key results of the Hershey-Chase experiment -
Answer-They wanted to figure out whether genes were
made of DNA or proteins. They found out that DNA was
present (no proteins). DNA contains all the information for
life's complexity.
What is complementary base pairing and how does it
influence the structure of DNA? - Answer-A+T and C+G. It
determines how the double helix is formed.
Explain how DNA is directional based on its structure. -
Answer-Monomers connect to create polymers that
makeup the backbone of the sugar-phosphate connection.
Those connections occur when the 3 prime carbon atom
connect with the phosphate group through the process of
condensation ending in the linkage of the 2 monomers and
, 4|Page
creating a phosphodiester linkage. This link makes up
DNA's backbone and creates directionality and develops
structure.
Describe the nature of science - Answer-Scientific ideas
change over time as new info is discovered.
Differentiate between questions that can be answered
through the scientific process and those that cannot -
Answer-Questions can be answered when they can be
observed or measured by collecting data. Questions
cannot be answered if they cannot be observed or
measured.
Define a theory in the scientific sense - Answer-
Explanations for observed phenomena that is supported
by a wide body of evidence.
Compare and contrast scientific theories and hypotheses -
Answer-A hypothesis is made before any research has
been conducted, while a theory is a principle formed
based on the research done and shown in data.
Bio 150 Exam 1 - UTK Mamantov (2026/2027) EXAM
||VERIFIED EXAM!!|| MOST RECENT EXAM ACTUAL
COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+ | GUARANTEED SUCCESS!! NEWEST EXAM!!!
Describe the purpose of a null hypothesis - Answer-The
purpose of the null hypothesis is to see if the test is
supported or not (null hypothesis states that there will be
no difference, effect, or relationship between the
variables).
How is the scientific method different from the scientific
process? - Answer-There is no order for the scientific
process as scientists tend to go back and forth while in the
scientific method it is a step by step method scientists
need to follow.
Explain why data supports or rejects hypotheses, not
"proves" them - Answer-Data supports or rejects a
hypothesis because you can never really prove a
hypothesis correct, you can only run tests to support the
hypothesis. There can always be some scenario in which
a hypothesis is incorrect.
,2|Page
Describe a control group - Answer-It is the group that is
left unchanged in an experiment. It is important because
they provide baseline measurements.
what kind of variables are of the x-axis? - Answer-
independent variables
what kind of variables are of the y-axis? - Answer-
dependent variables
What is DNA? - Answer-Deoxyribonucleic acid (DNA)
stores genetic information. DNA is a type of nucleic acid. It
is a polymer made up of monomers called nucleotides.
Describe the structure of DNA - Answer-DNA is a double
helix in which the backbone is made of alternating sugar
(deoxyribose) and phosphate groups. Attached to each
sugar is one of four bases: adenine (A), cytosine (C),
guanine (G) or thymine (T). The two strands are
connected by hydrogen bonds between
these bases. The sequence of the bases along DNA's
backbone encodes biological information, such as the
instructions for making a protein or RNA molecule.
,3|Page
What is the primary structure of DNA? - Answer-The
primary structure of DNA is a directional sugar-phosphate
backbone.
What is the secondary structure of DNA? - Answer-The
secondary structure of DNA is an antiparallel double helix.
Explain the key results of the Hershey-Chase experiment -
Answer-They wanted to figure out whether genes were
made of DNA or proteins. They found out that DNA was
present (no proteins). DNA contains all the information for
life's complexity.
What is complementary base pairing and how does it
influence the structure of DNA? - Answer-A+T and C+G. It
determines how the double helix is formed.
Explain how DNA is directional based on its structure. -
Answer-Monomers connect to create polymers that
makeup the backbone of the sugar-phosphate connection.
Those connections occur when the 3 prime carbon atom
connect with the phosphate group through the process of
condensation ending in the linkage of the 2 monomers and
, 4|Page
creating a phosphodiester linkage. This link makes up
DNA's backbone and creates directionality and develops
structure.
Describe the nature of science - Answer-Scientific ideas
change over time as new info is discovered.
Differentiate between questions that can be answered
through the scientific process and those that cannot -
Answer-Questions can be answered when they can be
observed or measured by collecting data. Questions
cannot be answered if they cannot be observed or
measured.
Define a theory in the scientific sense - Answer-
Explanations for observed phenomena that is supported
by a wide body of evidence.
Compare and contrast scientific theories and hypotheses -
Answer-A hypothesis is made before any research has
been conducted, while a theory is a principle formed
based on the research done and shown in data.
