this image shows spermatogenesis. what does 3 represent?
What will be an ideal response?
secondary spermatocyte
You might also like to view...
Which term best describes a human being?
(a) omnivore. (b) herbivore. (c) carnivore. (d) parasite.
A Giemsa stain is performed on an eye exudate on a patient with calabar swelling, eosinophilia, and a recent travel history to Africa. L. loa is suspected; however, the sheath in the adult worm recovered does not stain. Which one of the following statements explains this discrepancy?
a. The worm recovered is not L. loa. b. The specimen should have been stained with trichrome stain. c. The Giemsa stain is most likely expired. d. No discrepancy is present. The sheath does not stain with Giemsa stain.
A researcher might use site-directed mutagenesis because
A) spontaneous mutations occur too frequently to study. B) using a mutagen yields results that are specific to a gene and not applicable everywhere in the genome. C) mutation can happen at a specific site in the genome, compared to a mutagen that might cause mutations in several genes. D) it works in humans but not in experimental organisms or cell culture.
Discuss some of the impacts that tools and techniques of recombinant DNA technology have had on medicine.
What will be an ideal response?