Unit 4: Genetics UIUC MCB 150 Study
Guide Exam Questions And Actual
Answers.
Which molecule carries the genetic instructions for the physical characteristics of living organisms? -
Answer DNA
In order for the genetic material to fulfill its role in cells, it must meet which of the following criteria?
Multiple select question. - Answer Replication, Transmission, Information, Variation
Which researchers championed the idea that a chemical substance is involved in the transmission of
traits from parents to offspring?
Multiple choice question. - Answer Weismann and Nageli
What is the composition of a chromosome? - Answer Protein and DNA
The English microbiologist Frederick Griffith discovered transformation while experimenting with a
bacterium now classified as ______. - Answer Streptococcus pneumoniae
DNA controls the ______. - Answer Characteristics of organisms
Ability of a fertilized egg to develop into an adult organism
The individuals who brought clarity to the late 19th century notion in genetics that living organisms
possess a blueprint that has a biochemical basis. - Answer Weismann and Nageli
The cell structure that contains DNA is the ______. - Answer Chromosome
The bacterium Streptococcus pneumoniae causes the disease _________, which can be fatal - Answer
pneuomonia
,Why did the injection of dead smooth bacteria not kill Griffith's mice? - Answer Because dead bacteria
are unable to cause disease
Which molecule carries the genetic instructions for the physical characteristics of living organisms?
Multiple choice question. - Answer DNA
If a strain of type R Streptococcus pneumoniae is injected into a mouse, you would expect ______. -
Answer The mouse to live
Griffith's work was performed at a time when the transforming substance was ______. - Answer not
known
Which of the following types of Streptococcus pneumoniae bacteria did Griffith inject into mice?
pigmented
live
smooth
rough
heat killed - Answer live
smooth
rough
heat killed
Injection of which of the following in Griffith's experiments would cause the death of mice?
Live smooth bacteria + live rough bacteria
Live smooth bacteria
,Live rough bacteria
Dead smooth bacteria + dead rough bacteria
Dead smooth bacteria + live rough bacteria - Answer Live smooth bacteria + live rough bacteria
Live smooth bacteria
Dead smooth bacteria + live rough bacteria
Griffith's experiments demonstrated the ______ principle. - Answer Transformation
Griffith's experiments demonstrated that the formation of the ______ to produce smooth (S) bacteria is
governed by genetic material. - Answer capsule
What are the names of the nucleic acids found in cells? - Answer DNA, RNA
Match the criteria for genetic material with the relevant aspects of Griffith's work.
Information -->
Replication -->
Variation -->
Transmission --> - Answer Information --> The transformed cells pick up material from dead cells.
Replication --> The substance that produces the capsule can be copied.
Variation --> Choice, Bacteria have the ability to produce a capsule or not.
Bacteria have the ability to produce a capsule or not.
, Transmission --> The transforming principle is passed via binary fission.
DNA and RNA are acidic molecules, which means they release ________ ions in solution and have a net
_________ charge at neutral pH - Answer hydrogen, negative
DNA is a macromolecule composed of monomers called ________ - Answer nucleotides
Which structural features of DNA, which has the highest level of complexity? - Answer genome
The experiments carried out by Griffith were important because they showed ______. - Answer that
the genetic material could be passed from one cell to another
The nucleotides of a single DNA or RNA strand are linked by ______. - Answer covalent bonds
The interaction of two strands of DNA via hydrogen bonds results in a structure called the ______. -
Answer double helix
Nucleic acids are named as such because they ______. - Answer release H+ in solutions
The entire genetic material of an organism is termed its _________ - Answer genome
The components of a nucleotide are _______ - Answer phosphate group, nitrogenous base, and
pentose sugar
Rank the five levels of structural features of DNA. Start at the top with the most complex (or largest), and
end at the bottom with the least complex (or smallest). - Answer Genome > Chromosome > Double
Helix > DNA Strand > Nucleotide
A strand of DNA or RNA is composed of a linear array of nucleotides held together by what type of
bonds? - Answer covalent bonds
Guide Exam Questions And Actual
Answers.
Which molecule carries the genetic instructions for the physical characteristics of living organisms? -
Answer DNA
In order for the genetic material to fulfill its role in cells, it must meet which of the following criteria?
Multiple select question. - Answer Replication, Transmission, Information, Variation
Which researchers championed the idea that a chemical substance is involved in the transmission of
traits from parents to offspring?
Multiple choice question. - Answer Weismann and Nageli
What is the composition of a chromosome? - Answer Protein and DNA
The English microbiologist Frederick Griffith discovered transformation while experimenting with a
bacterium now classified as ______. - Answer Streptococcus pneumoniae
DNA controls the ______. - Answer Characteristics of organisms
Ability of a fertilized egg to develop into an adult organism
The individuals who brought clarity to the late 19th century notion in genetics that living organisms
possess a blueprint that has a biochemical basis. - Answer Weismann and Nageli
The cell structure that contains DNA is the ______. - Answer Chromosome
The bacterium Streptococcus pneumoniae causes the disease _________, which can be fatal - Answer
pneuomonia
,Why did the injection of dead smooth bacteria not kill Griffith's mice? - Answer Because dead bacteria
are unable to cause disease
Which molecule carries the genetic instructions for the physical characteristics of living organisms?
Multiple choice question. - Answer DNA
If a strain of type R Streptococcus pneumoniae is injected into a mouse, you would expect ______. -
Answer The mouse to live
Griffith's work was performed at a time when the transforming substance was ______. - Answer not
known
Which of the following types of Streptococcus pneumoniae bacteria did Griffith inject into mice?
pigmented
live
smooth
rough
heat killed - Answer live
smooth
rough
heat killed
Injection of which of the following in Griffith's experiments would cause the death of mice?
Live smooth bacteria + live rough bacteria
Live smooth bacteria
,Live rough bacteria
Dead smooth bacteria + dead rough bacteria
Dead smooth bacteria + live rough bacteria - Answer Live smooth bacteria + live rough bacteria
Live smooth bacteria
Dead smooth bacteria + live rough bacteria
Griffith's experiments demonstrated the ______ principle. - Answer Transformation
Griffith's experiments demonstrated that the formation of the ______ to produce smooth (S) bacteria is
governed by genetic material. - Answer capsule
What are the names of the nucleic acids found in cells? - Answer DNA, RNA
Match the criteria for genetic material with the relevant aspects of Griffith's work.
Information -->
Replication -->
Variation -->
Transmission --> - Answer Information --> The transformed cells pick up material from dead cells.
Replication --> The substance that produces the capsule can be copied.
Variation --> Choice, Bacteria have the ability to produce a capsule or not.
Bacteria have the ability to produce a capsule or not.
, Transmission --> The transforming principle is passed via binary fission.
DNA and RNA are acidic molecules, which means they release ________ ions in solution and have a net
_________ charge at neutral pH - Answer hydrogen, negative
DNA is a macromolecule composed of monomers called ________ - Answer nucleotides
Which structural features of DNA, which has the highest level of complexity? - Answer genome
The experiments carried out by Griffith were important because they showed ______. - Answer that
the genetic material could be passed from one cell to another
The nucleotides of a single DNA or RNA strand are linked by ______. - Answer covalent bonds
The interaction of two strands of DNA via hydrogen bonds results in a structure called the ______. -
Answer double helix
Nucleic acids are named as such because they ______. - Answer release H+ in solutions
The entire genetic material of an organism is termed its _________ - Answer genome
The components of a nucleotide are _______ - Answer phosphate group, nitrogenous base, and
pentose sugar
Rank the five levels of structural features of DNA. Start at the top with the most complex (or largest), and
end at the bottom with the least complex (or smallest). - Answer Genome > Chromosome > Double
Helix > DNA Strand > Nucleotide
A strand of DNA or RNA is composed of a linear array of nucleotides held together by what type of
bonds? - Answer covalent bonds
