Genetics Final BIOL 370 questions
well answered graded A+
The basic unit of heredity is the ________. - correct answer ✔✔ gene
________ is the use of a gene sequence to synthesize a functional protein. - correct answer ✔✔
gene expression
Which one of the following is NOT one of the general classes of macromolecules that are
necessary for cellular function?
-proteins
-carbohydrates
-ions
-lipids
-nucleic acids - correct answer ✔✔ ions
Which of the following acts to accelerate chemical reactions in a cell?
-Nucleic acids
-Enzymes
-Lipids
-Carbohydrates
-None of the answers are correct - correct answer ✔✔ enzymes
DNA stores the information needed for the synthesis of cellular ________. - correct answer ✔✔
proteins
,The class of macromolecules that are primarily responsible for catabolic and anabolic activities
in a cell are the: - correct answer ✔✔ proteins
The building blocks of DNA are the ________. - correct answer ✔✔ nucleotides
The structure of a cell that contains the genetic information is called a ________. - correct
answer ✔✔ chromosome
RNA is formed by the process of ________. - correct answer ✔✔ transcription
What is found at the end of a eukaryotic chromosome? - correct answer ✔✔ telomeres
The majority of the nonrepetitive genes in an organism are found where? - correct answer ✔✔
unique sequences
How many types of histone proteins are there? - correct answer ✔✔ 5
Where is the bacterial chromosome located? - correct answer ✔✔ nucleoid
A Barr body is an example of what? - correct answer ✔✔ Facultative heterochromatin
Areas of the chromosome that remain highly condensed are called ________. - correct answer
✔✔ Constitutive heterochromatin
What is the lowest level of chromosome condensation? - correct answer ✔✔ nucleosome
What is the highest level of chromosome condensation? - correct answer ✔✔ heterochromatin
, The function of condensin is to: - correct answer ✔✔ coat the chromosomes and condense
them into heterochromatin through the compaction of radial loops
Which of the following is NOT part of the structure of the nucleosome core particle?
Select one:
A. The DNA wrapped around the core contains 146-147 base pairs.
B. There is a linker region between two nucleosomes of about 200 base pairs.
C. It is composed of an octamer of proteins.
D. The DNA is wrapped around the core slightly over two complete turns.
E. There are two copies each of H2A, H2B, H3 and H4. - correct answer ✔✔ d
A nucleosome is a combination of ________ and ________. - correct answer ✔✔ DNA, histone
proteins
Why do positively charged amino acids appear more often than usual in histone proteins? -
correct answer ✔✔ Because histones and DNA have opposite charges, which improves the
compaction of DNA into nucleosomes
Which of the following best describes the double-helix of DNA?
Select one:
A. The strands are complementary
B. It has directionality
C. The strands are arranged in an anti-parallel arrangement
D. All of the answers are correct - correct answer ✔✔ d
Manufactures a 10-12 base segment of RNA. - correct answer ✔✔ primase
well answered graded A+
The basic unit of heredity is the ________. - correct answer ✔✔ gene
________ is the use of a gene sequence to synthesize a functional protein. - correct answer ✔✔
gene expression
Which one of the following is NOT one of the general classes of macromolecules that are
necessary for cellular function?
-proteins
-carbohydrates
-ions
-lipids
-nucleic acids - correct answer ✔✔ ions
Which of the following acts to accelerate chemical reactions in a cell?
-Nucleic acids
-Enzymes
-Lipids
-Carbohydrates
-None of the answers are correct - correct answer ✔✔ enzymes
DNA stores the information needed for the synthesis of cellular ________. - correct answer ✔✔
proteins
,The class of macromolecules that are primarily responsible for catabolic and anabolic activities
in a cell are the: - correct answer ✔✔ proteins
The building blocks of DNA are the ________. - correct answer ✔✔ nucleotides
The structure of a cell that contains the genetic information is called a ________. - correct
answer ✔✔ chromosome
RNA is formed by the process of ________. - correct answer ✔✔ transcription
What is found at the end of a eukaryotic chromosome? - correct answer ✔✔ telomeres
The majority of the nonrepetitive genes in an organism are found where? - correct answer ✔✔
unique sequences
How many types of histone proteins are there? - correct answer ✔✔ 5
Where is the bacterial chromosome located? - correct answer ✔✔ nucleoid
A Barr body is an example of what? - correct answer ✔✔ Facultative heterochromatin
Areas of the chromosome that remain highly condensed are called ________. - correct answer
✔✔ Constitutive heterochromatin
What is the lowest level of chromosome condensation? - correct answer ✔✔ nucleosome
What is the highest level of chromosome condensation? - correct answer ✔✔ heterochromatin
, The function of condensin is to: - correct answer ✔✔ coat the chromosomes and condense
them into heterochromatin through the compaction of radial loops
Which of the following is NOT part of the structure of the nucleosome core particle?
Select one:
A. The DNA wrapped around the core contains 146-147 base pairs.
B. There is a linker region between two nucleosomes of about 200 base pairs.
C. It is composed of an octamer of proteins.
D. The DNA is wrapped around the core slightly over two complete turns.
E. There are two copies each of H2A, H2B, H3 and H4. - correct answer ✔✔ d
A nucleosome is a combination of ________ and ________. - correct answer ✔✔ DNA, histone
proteins
Why do positively charged amino acids appear more often than usual in histone proteins? -
correct answer ✔✔ Because histones and DNA have opposite charges, which improves the
compaction of DNA into nucleosomes
Which of the following best describes the double-helix of DNA?
Select one:
A. The strands are complementary
B. It has directionality
C. The strands are arranged in an anti-parallel arrangement
D. All of the answers are correct - correct answer ✔✔ d
Manufactures a 10-12 base segment of RNA. - correct answer ✔✔ primase
