Ccbc BIO 110 Final Questions with VERIFIED Answers (Guaranteed
Success)
Q1: Which of the following events does not occur in prophase II.
Answer: formation of the chiasmata
Q2: How many nucleotides are contained in a single codon?.
Answer: 3
Q3: Polar covalent bonds.
Answer: Result from the unequal sharing of electrons
Q4: Which of the following best describes semiconservative replication?.
Answer: A DNA molecule consists of one parental strand and one new strand
Q5: If a cell is in G2.
Answer: it has twice the amount of DNA present in telophase.
Q6: If mitosis produced gametes in sexually reproducing organisms, then:.
Answer: chromosome number would double in each generation
Q7: Atomic Mass.
Answer: # that indicates approx how much matter that atom contains compared w/another atom
(#protons + #neutrons)
Q8: Vacuoles.
Answer: store materials, waste, water- maintain hydrostatic pressure
Q9: To prevent disastrous consequences, the eukaryotic cell cycle is controlled by:.
Answer: a series of cell cycle checkpoints.
Q10: Rough ER.
Answer: Manufactures proteins
,Q11: Lysosomes.
Answer: contain enzymes that break down ingested materials- break down damaged or unneeded
organelles and proteins
Q12: Fluid Mosaic Model.
Answer: Fluid- lipids and proteins can move in the membraneMosaic- phospholipids; proteins (integral
& peripheral); carbohydrates
Q13: Element.
Answer: Substances that can not be broken down into simpler substances by ordinary chemical
reactions
Q14: How is the 4-letter language of nucleic acids converted into the 20-word language of amino
acids?.
Answer: The 4 nucleic acid bases combine in 3-letter sequences that define different amino acids.
Q15: Why is only one strand of DNA transcribed into mRNA?.
Answer: Because the other strand would produce the same amino acid sequence in reverse order
Q16: Which of the following regions of a structural gene contains the information that specifies an
amino acid sequence?.
Answer: transcribed region
Q17: Semi-conservative replication.
Answer: Each strand of parent DNA serves as a template for a new strand
Q18: Active transport.
Answer: Requires cellular energy in the form of ATP. The molecules are moving against the gradient
(from high to low concentrations)
Q19: Which purine base forms 3 hydrogen bonds when binding its complementary nucleotide..
Answer: guanine
, Q20: What is the complement DNA strand to 5'ATTCGGTGA-3'.
Answer: 3'-TAAGCCACT5'
Q21: A gene can be defined as:.
Answer: a DNA or RNA sequence that carries information to produce a specific polypeptide.
Q22: Which of the following combinations of letters accurately represents two homologous
chromatids?.
Answer: A and D
Q23: In glycolysis, a six-carbon glucose molecule is converted to two three-carbon molecules of:.
Answer: pyruvate
Q24: A mutation that replaces one amino acid in a protein with another is called a __________
mutation..
Answer: missense
Q25: Why does DNA synthesis only proceed in the 5' to 3' direction?.
Answer: Because DNA polymerases can only add nucleotides to the 3' end of a polynucleotide strand.
Q26: The information carried by DNA is incorporated in a code specified by the:.
Answer: specific nucleotide sequence of the DNA molecule.
Q27: Plasma membrane.
Answer: encloses cell contents- regulate movement of materials in and out of the cell- helps maintain
cell shape- communicates with other cells
Q28: Which molecule is responsible for separating double stranded DNA into single strands?.
Answer: DNA helicase
Q29: Duplicated centrioles start moving to opposite poles of a dividing __________ cell during
__________ of the cell cycle..
Answer: animal; prophase
Success)
Q1: Which of the following events does not occur in prophase II.
Answer: formation of the chiasmata
Q2: How many nucleotides are contained in a single codon?.
Answer: 3
Q3: Polar covalent bonds.
Answer: Result from the unequal sharing of electrons
Q4: Which of the following best describes semiconservative replication?.
Answer: A DNA molecule consists of one parental strand and one new strand
Q5: If a cell is in G2.
Answer: it has twice the amount of DNA present in telophase.
Q6: If mitosis produced gametes in sexually reproducing organisms, then:.
Answer: chromosome number would double in each generation
Q7: Atomic Mass.
Answer: # that indicates approx how much matter that atom contains compared w/another atom
(#protons + #neutrons)
Q8: Vacuoles.
Answer: store materials, waste, water- maintain hydrostatic pressure
Q9: To prevent disastrous consequences, the eukaryotic cell cycle is controlled by:.
Answer: a series of cell cycle checkpoints.
Q10: Rough ER.
Answer: Manufactures proteins
,Q11: Lysosomes.
Answer: contain enzymes that break down ingested materials- break down damaged or unneeded
organelles and proteins
Q12: Fluid Mosaic Model.
Answer: Fluid- lipids and proteins can move in the membraneMosaic- phospholipids; proteins (integral
& peripheral); carbohydrates
Q13: Element.
Answer: Substances that can not be broken down into simpler substances by ordinary chemical
reactions
Q14: How is the 4-letter language of nucleic acids converted into the 20-word language of amino
acids?.
Answer: The 4 nucleic acid bases combine in 3-letter sequences that define different amino acids.
Q15: Why is only one strand of DNA transcribed into mRNA?.
Answer: Because the other strand would produce the same amino acid sequence in reverse order
Q16: Which of the following regions of a structural gene contains the information that specifies an
amino acid sequence?.
Answer: transcribed region
Q17: Semi-conservative replication.
Answer: Each strand of parent DNA serves as a template for a new strand
Q18: Active transport.
Answer: Requires cellular energy in the form of ATP. The molecules are moving against the gradient
(from high to low concentrations)
Q19: Which purine base forms 3 hydrogen bonds when binding its complementary nucleotide..
Answer: guanine
, Q20: What is the complement DNA strand to 5'ATTCGGTGA-3'.
Answer: 3'-TAAGCCACT5'
Q21: A gene can be defined as:.
Answer: a DNA or RNA sequence that carries information to produce a specific polypeptide.
Q22: Which of the following combinations of letters accurately represents two homologous
chromatids?.
Answer: A and D
Q23: In glycolysis, a six-carbon glucose molecule is converted to two three-carbon molecules of:.
Answer: pyruvate
Q24: A mutation that replaces one amino acid in a protein with another is called a __________
mutation..
Answer: missense
Q25: Why does DNA synthesis only proceed in the 5' to 3' direction?.
Answer: Because DNA polymerases can only add nucleotides to the 3' end of a polynucleotide strand.
Q26: The information carried by DNA is incorporated in a code specified by the:.
Answer: specific nucleotide sequence of the DNA molecule.
Q27: Plasma membrane.
Answer: encloses cell contents- regulate movement of materials in and out of the cell- helps maintain
cell shape- communicates with other cells
Q28: Which molecule is responsible for separating double stranded DNA into single strands?.
Answer: DNA helicase
Q29: Duplicated centrioles start moving to opposite poles of a dividing __________ cell during
__________ of the cell cycle..
Answer: animal; prophase
