Which of the following is true immediately after a spermatogonium completes cell division?
A) Mature spermatozoa enter the lumen.
B) Fusion of diploid nuclei occurs.
C) The primary spermatocyte is directed toward the lumen of the seminiferous tubule.
D) Daughter cells of spermatogonia are haploid.
E) Spermiogenesis begins.
Answer: C
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The figure illustrates the joints and bones of the rib cage. What does "C" represent?
A. costochondral joint B. sternum C. manubrium D. sternal symphyses E. sternocostal synchrondrosis
The ring of cartilage that forms the base of the larynx is the
A. epiglottis. B. thyroid cartilage. C. cricoid cartilage. D. arytenoid cartilage. E. cuneiform cartilage.
Cancer can result if
A) the cell cycle stops. B) the cell cycle runs backward. C) mitosis is too infrequent. D) mitosis is too frequent or does not stop.
Cleavage results in daughter cells containing half the number of chromosomes of the parent cell
Indicate whether the statement is true or false