The Gram-staining procedure is widely used because it allows rapid identification of a microorganism with little additional testing.
Answer the following statement true (T) or false (F)
False
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Which of the following is not true of the interaction of TBP with DNA?
A. TBP is able to interact with DNA nonspecifically with respect to sequence. B. TBP binds the TATA box through minor groove DNA contacts. C. A helix-turn-helix motif in TBP makes the DNA contacts. D. The DNA bound by TBP is bent. E. Two pairs of phenylalanine side chains are positioned between base pairs.
Which of the following is an adaptation to increase the surface area of a part of a cell that is involved in cellular respiration?
A) the cristae of a mitochondrion B) the outer membrane of a chloroplast C) the grana of a chloroplast D) the endoplasmic reticulum
Which one of the following is the earliest event in the process of fertilization?
A) Sperm contact the jelly coat around the egg. B) The sperm head plasma membrane fuses with the egg plasma membrane. C) Enzymes from the acrosome are released. D) The sperm nucleus enters the cytoplasm of the egg.
According to the text, this is the earliest member of the genus Homo to appear in the fossil record.
A) founder effect
B) Homo Habilis
C) Latin binomial
D) Australopithecus Africanus
E) convergent evolution
F) Ardipithecus ramidus
G) Neanderthals
H) chimpanzees
I) Homo erectus
J) astragalus