One double-stranded DNA molecule combined with proteins form ____________________, which is visible as
clumps or threads in the cell nucleus. Fill in the blank(s) with the appropriate word(s).
chromatin
You might also like to view...
Which of the following is NOT an oxygenic phototrophic microorganism present in marine waters?
A) Ostreococcus B) Prochlorococcus C) Roseobacter D) Trichodesmium
The earliest oxygenic phototrophs are thought to be
A. purple sulfur bacteria. B. green nonsulfur bacteria. C. purple nonsulfur bacteria. D. cyanobacteria. E. green nonsulfur bacteria AND purple nonsulfur bacteria.
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What will be an ideal response?
Which of the following is true of ejaculation?
A. Cowper's glands secrete fluid only after ejaculation. B. The ejaculatory duct opens into the seminiferous tubules. C. An average ejaculate contains about 200 million sperms. D. Upon ejaculation, sperms pass from one testis to the other.