Which of the following statements is true?
(a) Anaphase A must be completed before anaphase B can take place.
(b) In cells in which anaphase B predominates, the spindle will elongate much less than in cells in which anaphase A dominates.
(c) In anaphase A, both kinetochore and interpolar microtubules shorten.
(d) In anaphase B, microtubules associated with the cell cortex shorten.
Choice (d) is correct. Anaphase A and anaphase B generally occur at the same time [choice (a)]. In cells in which anaphase B predominates, the spindle will elongate more than in cells in which anaphase A predominates [choice (b)]. In anaphase A, only the kinetochore microtubules shorten [choice (c)].
You might also like to view...
A microarray:
A. is a technique that relies upon Taq polymerase. B. is typically done following gel electrophoresis. C. is a method that detects a single SNP. D. is a method that detects chromosomal mutations. E. None of the answer options is correct.
________ indirectly link the extracellular matrix and the cytoskeleton of animal cells.
Fill in the blank(s) with the appropriate word(s).
The chemical linkages that exert an attractive force over the greatest distance are ____
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
Starch is a long chain of sugars commonly found in foods such as corn, grain, potatoes, peas, and beans.
a. true b. false