BIO 121 TEST 2 CHAPTER 3 & 4 MASTERING BIOLOGY QUESTIONS AND
VERIFIED ANSWERS
Which of the following is not located in the nucleus?
A) Endoplasmic reticulum
B) DNA
C) Chromosomes
D) Nucleolus - CORRECT ANSWER✅✅✅A) Endoplasmic reticulum
What is the role of the histone proteins of the chromatin?
A) They act as a spool around which the DNA is wrapped.
B) They maintain the nuclear membrane.
C) They contain the instructions to build a protein.
D) They help assemble ribosomes. - CORRECT ANSWER✅✅✅A) They act as a spool around which the
DNA is wrapped.
What passes through the nuclear pores?
A) RNA
B) DNA and RNA
C) DNA
D) None of these - CORRECT ANSWER✅✅✅A) RNA
Which of the following statements is correct regarding chromosomes?
A) Chromosomes are strands of RNA, tightly wrapped up, that are in the cytoplasm.
B) Chromosomes are strands of DNA, tightly wrapped up, that are located in the nucleus.
C) Chromosomes are strands of DNA, tightly wrapped up, that are located everywhere in the cell.
,D) Chromosomes are strands of RNA, loosely wrapped up, that are located everywhere in the cell. -
CORRECT ANSWER✅✅✅B) Chromosomes are strands of DNA, tightly wrapped up, that are located
in the nucleus.
When would chromatin be the most tightly coiled?
A) During cellular respiration
B) During photosynthesis
C) During cell division
D) During protein synthesis - CORRECT ANSWER✅✅✅C) During cell division
Which of the following statements is correct regarding DNA and RNA?
A) DNA and RNA both stay in the nucleus after being produced.
B) DNA remains in the nucleus at all times; RNA is produced in the nucleus but then leaves the nucleus.
C) DNA and RNA both leave the nucleus after being produced.
D) RNA remains in the nucleus at all times; DNA is produced in the nucleus but then leaves the nucleus. -
CORRECT ANSWER✅✅✅B) DNA remains in the nucleus at all times; RNA is produced in the nucleus
but then leaves the nucleus.
What is the main function of the nucleus?
A)To produce proteins
B) To hold all of the RNA
C) To produce energy
D) To hold all of the DNA - CORRECT ANSWER✅✅✅D) To hold all of the DNA
The nuclear envelope of animal cells has nuclear pores while the nuclear envelope of plant cells does
not. True or False? - CORRECT ANSWER✅✅✅False
Which organelle functions to break down and recycle large molecules?
, A) Ribosome
B) Lysosome
C) Chloroplast
D) Golgi apparatus - CORRECT ANSWER✅✅✅B) Lysosome
How is DNA linked to the production of proteins?
A) Proteins hold the instructions on how to make DNA.
B) DNA holds the instructions for the cells on how to make proteins.
C) DNA is the end point of protein production that allows cells to finish making proteins.
D) DNA is not linked to the production of proteins. - CORRECT ANSWER✅✅✅B) DNA holds the
instructions for the cells on how to make proteins.
Which of the following statements is true?
A) Transcription and translation both occur in the nucleus.
B) Transcription occurs in the nucleus, and translation occurs in the cytoplasm.
C) Transcription and translation both occur in the cytoplasm.
D) Transcription occurs in the cytoplasm, and translation occurs in the nucleus. - CORRECT
ANSWER✅✅✅B) Transcription occurs in the nucleus, and translation occurs in the cytoplasm.
Which of the following statements is typically false?
A) DNA to RNA is called transcription.
B) DNA contains the same nucleotides as RNA.
C) RNA to protein is called translation.
D) DNA is double stranded, whereas RNA is single stranded. - CORRECT ANSWER✅✅✅B) DNA
contains the same nucleotides as RNA.
VERIFIED ANSWERS
Which of the following is not located in the nucleus?
A) Endoplasmic reticulum
B) DNA
C) Chromosomes
D) Nucleolus - CORRECT ANSWER✅✅✅A) Endoplasmic reticulum
What is the role of the histone proteins of the chromatin?
A) They act as a spool around which the DNA is wrapped.
B) They maintain the nuclear membrane.
C) They contain the instructions to build a protein.
D) They help assemble ribosomes. - CORRECT ANSWER✅✅✅A) They act as a spool around which the
DNA is wrapped.
What passes through the nuclear pores?
A) RNA
B) DNA and RNA
C) DNA
D) None of these - CORRECT ANSWER✅✅✅A) RNA
Which of the following statements is correct regarding chromosomes?
A) Chromosomes are strands of RNA, tightly wrapped up, that are in the cytoplasm.
B) Chromosomes are strands of DNA, tightly wrapped up, that are located in the nucleus.
C) Chromosomes are strands of DNA, tightly wrapped up, that are located everywhere in the cell.
,D) Chromosomes are strands of RNA, loosely wrapped up, that are located everywhere in the cell. -
CORRECT ANSWER✅✅✅B) Chromosomes are strands of DNA, tightly wrapped up, that are located
in the nucleus.
When would chromatin be the most tightly coiled?
A) During cellular respiration
B) During photosynthesis
C) During cell division
D) During protein synthesis - CORRECT ANSWER✅✅✅C) During cell division
Which of the following statements is correct regarding DNA and RNA?
A) DNA and RNA both stay in the nucleus after being produced.
B) DNA remains in the nucleus at all times; RNA is produced in the nucleus but then leaves the nucleus.
C) DNA and RNA both leave the nucleus after being produced.
D) RNA remains in the nucleus at all times; DNA is produced in the nucleus but then leaves the nucleus. -
CORRECT ANSWER✅✅✅B) DNA remains in the nucleus at all times; RNA is produced in the nucleus
but then leaves the nucleus.
What is the main function of the nucleus?
A)To produce proteins
B) To hold all of the RNA
C) To produce energy
D) To hold all of the DNA - CORRECT ANSWER✅✅✅D) To hold all of the DNA
The nuclear envelope of animal cells has nuclear pores while the nuclear envelope of plant cells does
not. True or False? - CORRECT ANSWER✅✅✅False
Which organelle functions to break down and recycle large molecules?
, A) Ribosome
B) Lysosome
C) Chloroplast
D) Golgi apparatus - CORRECT ANSWER✅✅✅B) Lysosome
How is DNA linked to the production of proteins?
A) Proteins hold the instructions on how to make DNA.
B) DNA holds the instructions for the cells on how to make proteins.
C) DNA is the end point of protein production that allows cells to finish making proteins.
D) DNA is not linked to the production of proteins. - CORRECT ANSWER✅✅✅B) DNA holds the
instructions for the cells on how to make proteins.
Which of the following statements is true?
A) Transcription and translation both occur in the nucleus.
B) Transcription occurs in the nucleus, and translation occurs in the cytoplasm.
C) Transcription and translation both occur in the cytoplasm.
D) Transcription occurs in the cytoplasm, and translation occurs in the nucleus. - CORRECT
ANSWER✅✅✅B) Transcription occurs in the nucleus, and translation occurs in the cytoplasm.
Which of the following statements is typically false?
A) DNA to RNA is called transcription.
B) DNA contains the same nucleotides as RNA.
C) RNA to protein is called translation.
D) DNA is double stranded, whereas RNA is single stranded. - CORRECT ANSWER✅✅✅B) DNA
contains the same nucleotides as RNA.
