A) cleavage of cohesin proteins by separase
B) modification of separase by cohesins
C) disassembly of spindle microtubules at the centromere
D) assembly of spindle microtubules
Correct Answer
verified
A) two cells, one cell containing two nuclei and a second cell without a nucleus
B) two cells, each cell with half of the genetic material of the parent cell
C) two cells, each cell with an identical nucleus containing the genetic material of the parent cell
D) one cell with one nucleus containing half of the genetic material of the parent cell
E) one cell with two nuclei, each identical to the nucleus of the parent cell
Correct Answer
verified
A) prophase
B) prometaphase
C) metaphase
D) anaphase
E) telophase
Correct Answer
verified
A) 4
B) 8
C) 16
D) 32
E) 64
Correct Answer
verified
A) How many cells are produced by the culture per hour?
B) What is the length of the S phase of the cell cycle?
C) When is the S chromosome synthesized?
D) How many picograms of DNA are made per cell cycle?
E) When do spindle fibers attach to chromosomes?
Correct Answer
verified
A) I
B) II
C) III
D) IV
E) V
Correct Answer
verified
A) They no longer have active nuclei.
B) They no longer carry receptors for signal molecules.
C) They have been shunted into G0.
D) They no longer produce cyclins.
Correct Answer
verified
A) an animal cell in the process of cytokinesis.
B) a plant cell in the process of cytokinesis.
C) a bacterial cell dividing.
D) a plant cell in metaphase.
Correct Answer
verified
A) prophase
B) prometaphase
C) metaphase
D) anaphase
E) cytokinesis
Correct Answer
verified
A) A
B) B
C) C
D) D
E) E
Correct Answer
verified
A) PDGF
B) separase
C) protein kinase
D) cyclin
Correct Answer
verified
A) cells with more than one nucleus.
B) cells that are unusually small.
C) cells lacking nuclei.
D) cell cycles lacking an S phase.
Correct Answer
verified
A) centromere
B) centrosome
C) centriole
D) chromatid
E) kinetochore
Correct Answer
verified
A) a clear area in the center of the dividing cell
B) decondensing chromosomes clustered at the poles
C) individual chromatids beginning to separate from one another
D) chromosomes clustered tightly at the center of the dividing cell
E) nuclear envelopes forming at the poles
Correct Answer
verified
A) It is safe enough to limit all apoptosis.
B) It does not affect metabolically active cells.
C) It only attacks cells that are density dependent.
D) It targets only rapidly dividing cells.
Correct Answer
verified
A) nuclear envelope breakdown.
B) cell wall formation.
C) elongation of microtubules.
D) shortening of microtubules.
E) formation of a cleavage furrow.
Correct Answer
verified
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