The geographical distribution of hominids changed
dramatically during the Pleistocene due to the
migrations of
a. Australopithecus robustus.
b. Australopithecus boisei.
c. Homo erectus.
d. Homo habilis.
e. Homo sapiens.
Answer: c
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Which of the following is not one of the six classes of lipids?
) steroids B) terpenes C) fatty acids D) triacylglycerols E) pectins
A mutation in the DNA-binding domain of a steroid hormone receptor is most likely to affect what aspect of receptor function?
A. The conformational change of the receptor B. The binding of the hormone to the receptor C. The translocation of the receptor to the nucleus D. The cellular response to the hormone
How can the analysis of mammalian genomes be used to detect and treat human disease? Check all that apply.A) The genomes of the mammalian relatives of humans are the best targets for discovering new treatments for human diseases.B) Comparing the genomes of bacteria and host is likely to reveal good drug targets to eliminate the bacteria without harming the host.C) A comparison of mouse and human genomes would help reveal functions for previously unidentified human genes.D) A comparison of human and mouse genomes would help observe DNA sequences that evolved prior to the evolution of mammals.
What will be an ideal response?
Gram positive cells:
a) are able to exclude crystal violet during the Gram stain. b) have a thinner layer of peptidoglycan than Gram negative cells have c) have lipoteichoic acids to connect the cell wall to the plasma membrane d) possess an outer membrane