If Tp sperm are observed by future researchers, how many chromosomes should be found in a Tp sperm nucleus?
A) 2
B) 3
C) 6
D) 12
Answer: C
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Suppose a microbiologist wanted to identify the microbe responsible for a specific metabolic activity. To simultaneously assess metabolic activity and phylogenetic identity, the best technique would be ________.
A. optical tweezers with microelectodes B. microautoradiography with fluorescent in situ hybridization (MAR-FISH) C. isotope fractionation D. metatranscriptomics
The openings in leaves that function to
exchange gases are called
a. cuticles. b. stomata. c. guard cells. d. pits. e. pores
what do T regulator cells (TR) do? (cell mediated immunity slide)
What will be an ideal response?
Which of the following responses is NOT a part of the B cell activation?
A) T helper cells release interleukins. B) Antigen is engulfed and digested to be presented on the B cell surface. C) T helper cells recognize the antigen through T cell receptor and MHC proteins. D) Interleukins stimulate B cells to divide. E) Antigen presented by macrophages binds to IgM on the B cell surface.