A) telophase
B) anaphase
C) prometaphase
D) metaphase
E) prophase
Correct Answer
verified
Multiple Choice
A) ATPases.
B) kinetochores.
C) kinases.
D) proton pumps.
E) cyclins.
Correct Answer
verified
Multiple Choice
A) kinetochores
B) Golgi-derived vesicles
C) actin and myosin
D) centrioles and centromeres
E) cyclin-dependent kinases
Correct Answer
verified
Multiple Choice
A) metastasis
B) changes in the order of cell cycle stages
C) lack of appropriate cell death
D) inability to form spindles
E) inability of chromosomes to meet at the metaphase plate
Correct Answer
verified
Multiple Choice
A) PDGF
B) MPF
C) protein kinase
D) cyclin
E) Cdk
Correct Answer
verified
Multiple Choice
A) cytokinesis.
B) cleavage.
C) meiosis.
D) apoptosis.
E) binary fission.
Correct Answer
verified
Multiple Choice
A) Cancer cells are no longer density dependent.
B) Cancer cells are no longer anchorage dependent.
C) Chromosomally abnormal cells can still go through cell cycle checkpoints.
D) Chromosomally abnormal cells still have normal metabolism.
E) Transformation introduces new chromosomes into cells.
Correct Answer
verified
Multiple Choice
A) 8; 8
B) 8; 16
C) 16; 8
D) 16; 16
E) 12; 16
Correct Answer
verified
Multiple Choice
A) They reproduce by binary fission in their early stages of development and by mitosis when they are mature.
B) They never coil up their chromosomes when they are dividing.
C) They use mitotic division but only have circular chromosomes.
D) They maintain a nuclear envelope during division.
E) None of them form spindles.
Correct Answer
verified
Multiple Choice
A) are unable to synthesize DNA.
B) are arrested at the S phase of the cell cycle.
C) continue to divide even when they are tightly packed together.
D) cannot function properly because they are affected by density-dependent inhibition.
E) are always in the M phase of the cell cycle.
Correct Answer
verified
Multiple Choice
A) Binary fission would not allow for the formation of new organisms.
B) Cell division would allow for the orderly and efficient segregation of multiple linear chromosomes.
C) Cell division would be faster than binary fission.
D) Cell division allows for lower rates of error per chromosome replication.
E) Binary fission would not allow the organism to have complex cells.
Correct Answer
verified
Multiple Choice
A) using motor proteins to split the centromere at specific arginine residues
B) creating tension by pulling toward opposite poles
C) sliding past each other like actin filaments
D) phosphorylating the centromere, thereby changing its conformation
E) attach the centromere to the nuclear envelope
Correct Answer
verified
Multiple Choice
A) I and IV
B) II only
C) III only
D) IV only
E) V only
Correct Answer
verified
Multiple Choice
A) cytokinesis
B) the attachment of microtubules to kinetochores
C) the splitting of the centrosomes
D) the disassembly of the nucleolus
E) replication of DNA
Correct Answer
verified
Multiple Choice
A) one-twelfth of the genes of the organism
B) two chromosomes, each with six chromatids
C) a single circular piece of DNA
D) two long strands of DNA plus proteins
E) two chromatids attached together at a centromere
Correct Answer
verified
Multiple Choice
A) centromere
B) centrosome
C) centriole
D) chromatid
E) kinetochore
Correct Answer
verified
Multiple Choice
A) They no longer have active nuclei.
B) They no longer carry receptors for signal molecules.
C) They have been shunted into Gā.
D) They can no longer bind Cdk to cyclin.
E) They show a drop in MPF concentration.
Correct Answer
verified
Multiple Choice
A) normal growth and cell function
B) DNA replication
C) mitosis
D) senescence
E) cell division
Correct Answer
verified
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