Which structure is found in a section of the testis?
(a) secondary spermatocytes.
(b) sperm.
(c) Sertoli cells.
(d) all of the above.
(d) all of the above.
Biology & Microbiology
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How did Hans Krebs discover the citric acid cycle?
What will be an ideal response?
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Net primary productivity of boreal forest is generally lower than in temperate deciduous forest
Indicate whether the statement is true or false
Biology & Microbiology
In alternation of generations in all plants, the multicellular haploid (1n) organism is referred to as the:
A) sporophyte. B) gamete. C) gametophyte. D) zygote.
Biology & Microbiology
Altering an organism's phenotype by ________ is a technique for determining the function of a gene.
A. gene therapy B. gene knockout C. probe analysis D. expression vector cloning E. FISH
Biology & Microbiology