8/11/25, 2:00 PM Unit 6 AP BIO Exam Review / Actual Test Questions with Detailed Verified Answers (Already Graded A+) Flashcards | Quizlet
Unit 6 AP BIO Exam Review / Actual Test Questions with
Detailed Verified Answers (Already Graded A+)
The best explanation for why adenine bonding with
thymine only and guanine with cytosine only is
Okay, but why can't T (a
through the base pairing rule in DNA where the bases
pyrimidine) match with G (a
only have a set of available bonds to allow
purine)?
complementary base pairing, where each base can
Based on the number of
only bond with a specific base
hydrogen bonds that are
partner. These hydrogen-bonded nitrogenous bases are called
available in adenine, base
thymine, guanine and pairs. In complementary base pairing, cytosine can
cytosine, make three hydrogen bonds with guanine, and
explain why A always matches adenine can form two hydrogen bonds with
with T, and C with G. In thymine. The structures complement each other like
your explanation, a lock and a key system.
include how a proofreading It can be observed in the structure of these
enzyme would identify a nitrogenous bases that purines have an imidazole
location where G ring attached to the pyrimidine ring in their
and T are accidentally structure. A purine has to make a hydrogen bond with
matched up, and a location another pyrimidine because there is only enough
where A and C are space between the two strands to accommodate a
matched up. purine and a pyrimidine. Therefore, two purines will not
fit between the strands while two pyrimidines will be too far to
bond.
… 1/33
,8/11/25, 2:00 PM Unit 6 AP BIO Exam Review / Actual Test Questions with Detailed Verified Answers (Already Graded A+) Flashcards | Quizlet
ENDURING UNDERSTANDING: Heritable information
provides for continuity of life.
LEARNING OBJECTIVE
IST-1.K Describe the structures involved in passing
hereditary information from one generation to the
next.
ESSENTIAL KNOWLEDGE
IST-1.K.1 DNA, and in some cases RNA, is the primary
source of heritable information.
IST-1.K.2 Genetic information is transmitted from one
generation to the next through DNA or RNA—
a. Genetic information is stored in and passed to
TOPIC 6.1 DNA and RNA subsequent generations through DNA molecules and,
Structure
in some cases, RNA molecules.
b. Prokaryotic organisms typically have circular
chromosomes, while eukaryotic organisms
typically have multiple linear chromosomes.
IST-1.K.3 Prokaryotes and eukaryotes can contain
plasmids, which are small extra-chromosomal,
double-stranded, circular DNA molecules.
LEARNING OBJECTIVE
IST-1.L Describe the characteristics of DNA that allow it
to be used as the hereditary material.
ESSENTIAL KNOWLEDGE
IST-1.L.1 DNA, and sometimes RNA, exhibits specific nucleotide
base
pairing that is conserved through evolution: adenine
pairs with thymine or uracil (A-T or A-U) and cytosine
pairs with guanine (C-G)—
a. Purines (G and A) have a double ring structure.
b. Pyrimidines (C, T, and U) have a single ring structure.
… 2/33
,8/11/25, 2:00 PM Unit 6 AP BIO Exam Review / Actual Test Questions with Detailed Verified Answers (Already Graded A+) Flashcards | Quizlet
the Hershey-Chase
experiments were a series of
experiments conducted in 1952
by Alfred Hershey and Martha
Chase that
helped to confirm that DNA is
genetic material. While DNA
had been known to biologists
What is the significance of since 1869, many scientists still
this famous experiment assumed at the time that
(what does it proteins carried the information
demonstrate)? for inheritance because DNA
appeared to be an inert
molecule,
and, since it is located in the
nucleus, its role was considered
to be phosphorus storage. In
their experiments, Hershey
and Chase showed that when
bacteriophages, which
are composed of DNA and
protein, infect bacteria, their
DNA enters the host bacterial
cell, but most of their protein
does not.
Hershey and Chase and
subsequent discoveries all
served to prove that DNA is the
hereditary material.
… 3/33
, 8/11/25, 2:00 PM Unit 6 AP BIO Exam Review / Actual Test Questions with Detailed Verified Answers (Already Graded A+) Flashcards | Quizlet
How did Crick, Watson, Combined, they revealed the double helix structure of the DNA
Franklin and Wilkins molecule.
contribute to our
knowledge of DNA?
Plasmids are small rings of DNA free
Draw a plasmid. Where
floating inside Prokaryotes. They
are plasmids found in
are also found in mitochondria
Prokaryotic cells? Where
and chloroplasts (consider the
are they found in
Endosymbiotic Theory that
Eukaryotic cells (HINT
these organelles were once
consider the evolution of
free-living
some
prokaryotes)
Eukaryotic organelles!)?
Come up with some way to A and G got married and have 2
remember (to link the facts
together) that A and G are wedding rings C, T, and U build
Purines and have a
double ring, while C, T, pyramids with one ring
and U are Pyrimidines
and have just one ring.
Then share your idea with
someone
and see what idea they came
up with!
Briefly explain in your The base pairing rules for DNA are governed by the
own words how the base complementary base pairs: adenine (A) with thymine
pairing rules of DNA lead (T) in an A-T pairing and cytosine (C) with guanine (G)
to its ability to be used as in a C-G pairing. Conversely, thymine only binds with
the adenine in a T-A pairing and guanine only binds with
hereditary material of life cytosine in a G-C pairing.
(aka, to be copied and
passed to a resulting
daughter cell).
… 4/33
Unit 6 AP BIO Exam Review / Actual Test Questions with
Detailed Verified Answers (Already Graded A+)
The best explanation for why adenine bonding with
thymine only and guanine with cytosine only is
Okay, but why can't T (a
through the base pairing rule in DNA where the bases
pyrimidine) match with G (a
only have a set of available bonds to allow
purine)?
complementary base pairing, where each base can
Based on the number of
only bond with a specific base
hydrogen bonds that are
partner. These hydrogen-bonded nitrogenous bases are called
available in adenine, base
thymine, guanine and pairs. In complementary base pairing, cytosine can
cytosine, make three hydrogen bonds with guanine, and
explain why A always matches adenine can form two hydrogen bonds with
with T, and C with G. In thymine. The structures complement each other like
your explanation, a lock and a key system.
include how a proofreading It can be observed in the structure of these
enzyme would identify a nitrogenous bases that purines have an imidazole
location where G ring attached to the pyrimidine ring in their
and T are accidentally structure. A purine has to make a hydrogen bond with
matched up, and a location another pyrimidine because there is only enough
where A and C are space between the two strands to accommodate a
matched up. purine and a pyrimidine. Therefore, two purines will not
fit between the strands while two pyrimidines will be too far to
bond.
… 1/33
,8/11/25, 2:00 PM Unit 6 AP BIO Exam Review / Actual Test Questions with Detailed Verified Answers (Already Graded A+) Flashcards | Quizlet
ENDURING UNDERSTANDING: Heritable information
provides for continuity of life.
LEARNING OBJECTIVE
IST-1.K Describe the structures involved in passing
hereditary information from one generation to the
next.
ESSENTIAL KNOWLEDGE
IST-1.K.1 DNA, and in some cases RNA, is the primary
source of heritable information.
IST-1.K.2 Genetic information is transmitted from one
generation to the next through DNA or RNA—
a. Genetic information is stored in and passed to
TOPIC 6.1 DNA and RNA subsequent generations through DNA molecules and,
Structure
in some cases, RNA molecules.
b. Prokaryotic organisms typically have circular
chromosomes, while eukaryotic organisms
typically have multiple linear chromosomes.
IST-1.K.3 Prokaryotes and eukaryotes can contain
plasmids, which are small extra-chromosomal,
double-stranded, circular DNA molecules.
LEARNING OBJECTIVE
IST-1.L Describe the characteristics of DNA that allow it
to be used as the hereditary material.
ESSENTIAL KNOWLEDGE
IST-1.L.1 DNA, and sometimes RNA, exhibits specific nucleotide
base
pairing that is conserved through evolution: adenine
pairs with thymine or uracil (A-T or A-U) and cytosine
pairs with guanine (C-G)—
a. Purines (G and A) have a double ring structure.
b. Pyrimidines (C, T, and U) have a single ring structure.
… 2/33
,8/11/25, 2:00 PM Unit 6 AP BIO Exam Review / Actual Test Questions with Detailed Verified Answers (Already Graded A+) Flashcards | Quizlet
the Hershey-Chase
experiments were a series of
experiments conducted in 1952
by Alfred Hershey and Martha
Chase that
helped to confirm that DNA is
genetic material. While DNA
had been known to biologists
What is the significance of since 1869, many scientists still
this famous experiment assumed at the time that
(what does it proteins carried the information
demonstrate)? for inheritance because DNA
appeared to be an inert
molecule,
and, since it is located in the
nucleus, its role was considered
to be phosphorus storage. In
their experiments, Hershey
and Chase showed that when
bacteriophages, which
are composed of DNA and
protein, infect bacteria, their
DNA enters the host bacterial
cell, but most of their protein
does not.
Hershey and Chase and
subsequent discoveries all
served to prove that DNA is the
hereditary material.
… 3/33
, 8/11/25, 2:00 PM Unit 6 AP BIO Exam Review / Actual Test Questions with Detailed Verified Answers (Already Graded A+) Flashcards | Quizlet
How did Crick, Watson, Combined, they revealed the double helix structure of the DNA
Franklin and Wilkins molecule.
contribute to our
knowledge of DNA?
Plasmids are small rings of DNA free
Draw a plasmid. Where
floating inside Prokaryotes. They
are plasmids found in
are also found in mitochondria
Prokaryotic cells? Where
and chloroplasts (consider the
are they found in
Endosymbiotic Theory that
Eukaryotic cells (HINT
these organelles were once
consider the evolution of
free-living
some
prokaryotes)
Eukaryotic organelles!)?
Come up with some way to A and G got married and have 2
remember (to link the facts
together) that A and G are wedding rings C, T, and U build
Purines and have a
double ring, while C, T, pyramids with one ring
and U are Pyrimidines
and have just one ring.
Then share your idea with
someone
and see what idea they came
up with!
Briefly explain in your The base pairing rules for DNA are governed by the
own words how the base complementary base pairs: adenine (A) with thymine
pairing rules of DNA lead (T) in an A-T pairing and cytosine (C) with guanine (G)
to its ability to be used as in a C-G pairing. Conversely, thymine only binds with
the adenine in a T-A pairing and guanine only binds with
hereditary material of life cytosine in a G-C pairing.
(aka, to be copied and
passed to a resulting
daughter cell).
… 4/33
