BSC 1011 FINAL EXAM QUESTIONS WITH VERIFIED
ANSWERS
A _______ group contains a common ancestor but
not all of its descendants. - Answers - Paraphyletic
_____ are viruses that can infect bacteria. - Answers - Phages
When bacteria are exposed to nutrient-poor conditions,
they form thick-walled structures that contain the
chromosome and a small amount of cytoplasm. These
structures are called _______. - Answers - Endospores
When choosing among competing cladograms, the
preferred hypothesis is the one that is the simplest for all
characters and their states. This is also known as the
____ ___ ____. - Answers - Principle of Parsimony
The most diverse of the four eukaryotic kingdoms is the
_____ Kingdom. - Answers - Protista
The group that probably gave rise to chloroplasts is the
_______. - Answers - Cyanobacteria
The tropical diseases such as African sleeping sickness,
Chagas disease, and leishmaniasis are caused by
________ - Answers - Trypanosomes
Eukaryotic cells acquired mitochondria and chloroplasts
by _________. - Answers - Endosymbiosis
Organisms that are characterized by being unicellular,
photosynthetic, and having double shells made of silica are
known as _____. - Answers - Diatoms
The study of biological diversity and evolutionary
relationships among organisms is _______. - Answers - Systematics
An example of an "emerging virus" (a virus in a new
host) with a lethality rate in excess of 50% is ______. - Answers - Ebola
Recently a class of infectious proteins with no
associated nucleic acid have been identified. They are
referred to as_____. - Answers - Prions
, _____ ___ _____ is the transfer of genes in
different species, both prokaryotic or eukaryotic. - Answers - Horizontal Gene Transfer
The HIV virus is considered a(n) ____ virus,
because after getting integrated into the host cell
chromosomes, it does not begin replicating
immediately. - Answers - latent
Flu shots are vaccines against the most common
strains of the flu virus. Most vaccines are rarely
changed but new flu vaccines are produced every year.
Flu shots constantly being reformulated because
certain parts of the viral genome are reshuffled by
_______ and ________. - Answers - Mutations; recombination
The science of describing, naming, and classifying
extant and extinct organisms is _____. - Answers - Taxonomy
__ _______ is a virus with an icosahedral
head, a capsid that contains primarily three proteins, a
connecting neck with a collar and long whiskers, a
long tail and a complex base plate. - Answers - T4 bacteriophage
Nearly all viruses are constructed of either DNA
or RNA with a protein wrapping, called a ____. - Answers - Capsid
Life apparently originated on Earth about
______ years ago. - Answers - 3.5 billion
Structures that are similar in different species and
have a common ancestor are ______. - Answers - Homologous
________ is a term that refers to similarities
among various species that occur because the species
are derived from a common ancestor. - Answers - Homology
In addition to a _____ _____, all vertebrates
have a distinctive head or skull. - Answers - Vertebral column
Inside its beak an octopus has a ____ ____
that is used to tear apart food, which is analogous to
the radula of gastropods - Answers - Rasping Tongue
____ visit flowers To collect food and feed it to their
larvae. - Answers - Bees
ANSWERS
A _______ group contains a common ancestor but
not all of its descendants. - Answers - Paraphyletic
_____ are viruses that can infect bacteria. - Answers - Phages
When bacteria are exposed to nutrient-poor conditions,
they form thick-walled structures that contain the
chromosome and a small amount of cytoplasm. These
structures are called _______. - Answers - Endospores
When choosing among competing cladograms, the
preferred hypothesis is the one that is the simplest for all
characters and their states. This is also known as the
____ ___ ____. - Answers - Principle of Parsimony
The most diverse of the four eukaryotic kingdoms is the
_____ Kingdom. - Answers - Protista
The group that probably gave rise to chloroplasts is the
_______. - Answers - Cyanobacteria
The tropical diseases such as African sleeping sickness,
Chagas disease, and leishmaniasis are caused by
________ - Answers - Trypanosomes
Eukaryotic cells acquired mitochondria and chloroplasts
by _________. - Answers - Endosymbiosis
Organisms that are characterized by being unicellular,
photosynthetic, and having double shells made of silica are
known as _____. - Answers - Diatoms
The study of biological diversity and evolutionary
relationships among organisms is _______. - Answers - Systematics
An example of an "emerging virus" (a virus in a new
host) with a lethality rate in excess of 50% is ______. - Answers - Ebola
Recently a class of infectious proteins with no
associated nucleic acid have been identified. They are
referred to as_____. - Answers - Prions
, _____ ___ _____ is the transfer of genes in
different species, both prokaryotic or eukaryotic. - Answers - Horizontal Gene Transfer
The HIV virus is considered a(n) ____ virus,
because after getting integrated into the host cell
chromosomes, it does not begin replicating
immediately. - Answers - latent
Flu shots are vaccines against the most common
strains of the flu virus. Most vaccines are rarely
changed but new flu vaccines are produced every year.
Flu shots constantly being reformulated because
certain parts of the viral genome are reshuffled by
_______ and ________. - Answers - Mutations; recombination
The science of describing, naming, and classifying
extant and extinct organisms is _____. - Answers - Taxonomy
__ _______ is a virus with an icosahedral
head, a capsid that contains primarily three proteins, a
connecting neck with a collar and long whiskers, a
long tail and a complex base plate. - Answers - T4 bacteriophage
Nearly all viruses are constructed of either DNA
or RNA with a protein wrapping, called a ____. - Answers - Capsid
Life apparently originated on Earth about
______ years ago. - Answers - 3.5 billion
Structures that are similar in different species and
have a common ancestor are ______. - Answers - Homologous
________ is a term that refers to similarities
among various species that occur because the species
are derived from a common ancestor. - Answers - Homology
In addition to a _____ _____, all vertebrates
have a distinctive head or skull. - Answers - Vertebral column
Inside its beak an octopus has a ____ ____
that is used to tear apart food, which is analogous to
the radula of gastropods - Answers - Rasping Tongue
____ visit flowers To collect food and feed it to their
larvae. - Answers - Bees
