The bipolar spindle organized by the centrioles is formed from _____.
A) the remnants produced by the disintegration of the nuclear membrane
B) microtubules that grow out of each centrosom
C) cylindrical fibers that develop as adjacent nucleosomes interact with one another
D) a tubulin assembly center located within each centromere
E) actin filaments
Ans: B) microtubules that grow out of each centrosom
You might also like to view...
What characterizes terrestrial tetrapods?
A. Lives on land, has four limbs B. Lives in the water, has four limbs C. Lives on land, has four cranial nerves D. Lives on land, has four sets of chromosomes
A normal vital capacity is approximately ________ mL.
A) 500 B) 9000 C) 100 D) 1000 E) 4500
Which statement about echinoderms is FALSE?
a. They develop as deuterostomes. b. They fall within the group Bilateria. c. They show evidence of segmentation. d. The fall on the eumetazoan branch of animals. e. They fall within the group Deuterostomia.
Which is not a method of introducing new genes into a bacterium?
A. Conjugation B. Transduction C. Binary fission D. Transformation