BS 161 EXAM 3 NEWEST EXAM COMPLETE 2025
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+.
,Which major checkpoint delays the cell cycle when DNA replication is
incomplete?
1) G1 checkpoint
2) M checkpoint
3) G2 checkpoint G1, G2, and M checkpoints
4) G2 checkpoint - ANSWER >>>>G2 checkpoint
CDKs are important in the regulation of the cell cycle. They carry out their
function by:
1) degrading cyclin proteins
2) adding phosphate groups to proteins
3) preventing the progression of one stage of the cell cycle to the next
4) removing phosphate - ANSWER >>>>Adding phosphate groups to proteins
Which of the following is TRUE if a cell has a mutation in the p53 gene such
that the p53 protein is no longer able to be phosphorylated?
1) The kinase activity in the nucleus would decrease
2) the cell would arrest
3) the cell would proceed through the cell cycle even in the presence
of DNA damage
4) the amount of cytoplasmic p53 would increase - ANSWER
>>>>The cell would proceed through the cell cycle even in the presence of
DNA damage
, Kinase - ANSWER >>>>an enzyme that catalyzes the transfer of a phosphate
group from ATP to a specified molecule.
CDK - ANSWER >>>>cyclin dependent kinase
S phase - ANSWER >>>>The synthesis phase of the cell cycle; the portion of
interphase during which DNA is replicated.
M phase checkpoint - ANSWER >>>>chromosomes have attached to spindle
apparatus, chromosomes have properly segregated and MPF is absent
Cytokinesis - ANSWER >>>>division of the cytoplasm to form two separate
daughter cells
G2 checkpoint - ANSWER >>>>The cell checks to make sure the DNA is
copied correctly
G1 checkpoint - ANSWER >>>>checks for cell size, nutrients, growth factors
and DNA damage
cell cycle - ANSWER >>>>series of events that cells go through as they grow
and divide
G protein - ANSWER >>>>A GTP-binding protein that relays signals from
a plasma membrane signal receptor, known as a G protein-coupled
receptor, to other signal transduction proteins inside the cell.
Receptors - ANSWER >>>>Special structures that allow living organisms to
sense the conditions of their internal or external environment.
How do new cyclin proteins appear in the cytoplasm? - ANSWER
>>>>They are made through protein synthesis.
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+.
,Which major checkpoint delays the cell cycle when DNA replication is
incomplete?
1) G1 checkpoint
2) M checkpoint
3) G2 checkpoint G1, G2, and M checkpoints
4) G2 checkpoint - ANSWER >>>>G2 checkpoint
CDKs are important in the regulation of the cell cycle. They carry out their
function by:
1) degrading cyclin proteins
2) adding phosphate groups to proteins
3) preventing the progression of one stage of the cell cycle to the next
4) removing phosphate - ANSWER >>>>Adding phosphate groups to proteins
Which of the following is TRUE if a cell has a mutation in the p53 gene such
that the p53 protein is no longer able to be phosphorylated?
1) The kinase activity in the nucleus would decrease
2) the cell would arrest
3) the cell would proceed through the cell cycle even in the presence
of DNA damage
4) the amount of cytoplasmic p53 would increase - ANSWER
>>>>The cell would proceed through the cell cycle even in the presence of
DNA damage
, Kinase - ANSWER >>>>an enzyme that catalyzes the transfer of a phosphate
group from ATP to a specified molecule.
CDK - ANSWER >>>>cyclin dependent kinase
S phase - ANSWER >>>>The synthesis phase of the cell cycle; the portion of
interphase during which DNA is replicated.
M phase checkpoint - ANSWER >>>>chromosomes have attached to spindle
apparatus, chromosomes have properly segregated and MPF is absent
Cytokinesis - ANSWER >>>>division of the cytoplasm to form two separate
daughter cells
G2 checkpoint - ANSWER >>>>The cell checks to make sure the DNA is
copied correctly
G1 checkpoint - ANSWER >>>>checks for cell size, nutrients, growth factors
and DNA damage
cell cycle - ANSWER >>>>series of events that cells go through as they grow
and divide
G protein - ANSWER >>>>A GTP-binding protein that relays signals from
a plasma membrane signal receptor, known as a G protein-coupled
receptor, to other signal transduction proteins inside the cell.
Receptors - ANSWER >>>>Special structures that allow living organisms to
sense the conditions of their internal or external environment.
How do new cyclin proteins appear in the cytoplasm? - ANSWER
>>>>They are made through protein synthesis.
