The multiple sites of DNA replication along eukaryotic chromosomes are known as
A) replicons.
B) centromeres.
C) telomeres.
D) plasmodesmata.
E) targets of rapamycin.
Answer: A
You might also like to view...
How does a macrophage (immune cell) consume a bacteria?
A. phagocytosis B. endocytosis C. exocytosis D. receptor-mediated endocytosis E. pinocytosis
Which characteristics best describe earthworms?
a. polychaete; fluid filled coelom b. oligochaete; open circulatory system c. moves by only longitudinal muscle contraction and hydrostatic skeleton d. oligochaete; scavengers; closed circulatory system e. hermaphrodites that fertilize themselves; closed circulatory system
A basic difference between gymnosperms and flowering plants is:
a. gymnosperms produce seeds that are enclosed within a fruit, while flowering plants produce seeds borne naked. b. gymnosperms produce flowers that have floral parts arranged in threes, or multiples of threes, while flowering plants have floral parts arranged in fours or in multiples of four. c. gymnosperms produce only cones, while flowering plants produce both flowers and cones. d. gymnosperms produce seeds borne naked, while flowering plants produce seeds enclosed within a fruit. e. gymnosperms produce “naked” ovules, while flowering plants produce “naked” seeds.
In 1859, Charles Darwin wrote, "The affinities of all the beings of the same class have sometimes been represented by a great tree... As buds give rise by growth to fresh buds, and these if vigorous, branch out and overtop on all sides many a feebler branch, so by generation I believe it has been with the great Tree of Life, which fills with its dead and broken branches the crust of the earth, and covers the surface with its ever branching and beautiful ramifications." At the base of the evolutionary tree of all life is ___________.
A. the first tetrapod B. an amniote C. an organism that is a common ancestor to all living organisms. D. a fork that represents the split between plants and animals.