Homework Answers
36. B. #3.
Phosphorylation of Rb is more important for the progression of cell cycle from G1 to S pahse. In S phase the DNA content will increase. Since the cell cylce is not progressed form G1 phase, the DNA content remains same and did not increase at all.
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Question 36 1 pts 36. You have a population of mammalian cells growing in media containing...
While comparing the amino acid sequences of many different GPCRs, you notice the presence of conserved...
While comparing the amino acid sequences of many different GPCRs, you notice the presence of conserved serine and threonine amino acids on the same cytosolic region of each receptor. You change the DNA sequence so that all of the conserved serine and threonine amino acids in the cytosolic region are converted to glutamic acid. Which of the following effects would you most likely see when cells expressing this modified GPCR are exposed to ligand compared to your control cells that...
You are given a flask with liquid media containing a population of S. pombe cells that...
You are given a flask with liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The mutated gene in this strain of yeast encodes...
Question 9 1 pts You are given a flask with standard liquid media containing a population...
Question 9 1 pts You are given a flask with standard liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature in the dark before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The...
You are given a flask with liquid media containing a population of S. pombe cells that...
You are given a flask with liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The mutated gene in this strain of yeast encodes...
You are given a flask with standard liquid media containing a population of S. pombe cells...
You are given a flask with standard liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature in the dark before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The mutated gene in this...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein is active only when it is activated, but not inhibited, by its upstream signaling molecules. Activation and inhibition are indicated by normal and blunt arrows, respectively. Assume that the transcription regulator can be activated by either the binding protein or the kinase that are immediately upstream of the transcription factor. Under which of the following conditions will the expression of target:gene "X" be induced?...
QUESTION 1 A gene that encodes a protein that stimulates progression of the cell cycle is...
QUESTION 1 A gene that encodes a protein that stimulates progression of the cell cycle is known as a proto-oncogene. True False QUESTION 2 Cytokinesis occurs after which stage or phase of the cell cycle? a. G2 b. S c. G0 d. G1 e. M phase QUESTION 3 During cell-cycle checkpoints, protein kinases known as CDKs phosphorylate target proteins only when they associate with a cyclin. True False QUESTION 4 During mitosis, many of the spindle fibers attach to chromosomes...
please answer all 5! thank you! Question 1 1 pts Which of these individuals would be...
please answer all 5! thank you!
Question 1 1 pts Which of these individuals would be considered a 'mutant'? A person with an XO sex chromosome genotype The recessive allele for a straight hairline in humans A population of sunflowers which produce unique, red/orange petals, native to the southeastern tip of Kansas A turtle carrying an allele enabling it to wield a pair of daggers, present in only 0.0001% of the turtle population. Allele is expressed in dominant form prior...
QUESTION 13 Which of the following would occur if a mutation caused Kinase 1 to be...
QUESTION 13
Which of the following would occur if a mutation caused Kinase 1
to be unable to be phosphorylated? (Select all)
RTK would bind VEGF
RTK would phosphorylate itself
RAS would become active
The phosphorylation cascade would occur
The endothelial cell would divide
0.2 points
QUESTION 14
Imagine that an endothelial cell has a mutation in several of
the enzymes that perform mismatch repair. The endothelial cell
replicates its DNA and then divides into two cells. The resulting...
can someone answer questios 1-13? nstructure.com/courses/11471/quizzes/231523/take Question 1 0.5 pts A cell spends most of its...
can someone answer questios 1-13?
nstructure.com/courses/11471/quizzes/231523/take Question 1 0.5 pts A cell spends most of its life in what stage of the cell cycle? O Interphase O Prophase O Metaphase O Telophase O Cytokinesis D Question 2 0.5 pts TRUE or FALSE: Gap intervals are periods of inactivity. O True O False | Question 3 4 pts Briefly explain why checkpoints exist, when they occur, and what they are responsible for HTML Editor ucture.com/courses/11471/quizzes/231523/take Question 3 4 pt Briefly explain...
You are given a flask with liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The mutated gene in this strain of yeast encodes...
Question 9 1 pts You are given a flask with standard liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature in the dark before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The...
You are given a flask with liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The mutated gene in this strain of yeast encodes...
You are given a flask with standard liquid media containing a population of S. pombe cells that have a temperature sensitive mutation of a gene that causes complete loss of function of the gene product at the restrictive temperature. The flask had been incubating at the permissive temperature in the dark before it was given to you, and the cells in the flask were replicating asynchronously with respect to the stage of the cell cycle. The mutated gene in this...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein is active only when it is activated, but not inhibited, by its upstream signaling molecules. Activation and inhibition are indicated by normal and blunt arrows, respectively. Assume that the transcription regulator can be activated by either the binding protein or the kinase that are immediately upstream of the transcription factor. Under which of the following conditions will the expression of target:gene "X" be induced?...
please answer all 5! thank you!
Question 1 1 pts Which of these individuals would be considered a 'mutant'? A person with an XO sex chromosome genotype The recessive allele for a straight hairline in humans A population of sunflowers which produce unique, red/orange petals, native to the southeastern tip of Kansas A turtle carrying an allele enabling it to wield a pair of daggers, present in only 0.0001% of the turtle population. Allele is expressed in dominant form prior...
QUESTION 13
Which of the following would occur if a mutation caused Kinase 1
to be unable to be phosphorylated? (Select all)
RTK would bind VEGF
RTK would phosphorylate itself
RAS would become active
The phosphorylation cascade would occur
The endothelial cell would divide
0.2 points
QUESTION 14
Imagine that an endothelial cell has a mutation in several of
the enzymes that perform mismatch repair. The endothelial cell
replicates its DNA and then divides into two cells. The resulting...
can someone answer questios 1-13?
nstructure.com/courses/11471/quizzes/231523/take Question 1 0.5 pts A cell spends most of its life in what stage of the cell cycle? O Interphase O Prophase O Metaphase O Telophase O Cytokinesis D Question 2 0.5 pts TRUE or FALSE: Gap intervals are periods of inactivity. O True O False | Question 3 4 pts Briefly explain why checkpoints exist, when they occur, and what they are responsible for HTML Editor ucture.com/courses/11471/quizzes/231523/take Question 3 4 pt Briefly explain...
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