What component is located on the exterior surface of a prokaryote?
A. Flagellum
B. Cytoplasm
C. Plasma membrane
D. DNA
E. Nucleoid
Answer: A
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A fly embryo that expresses the bicoid mutant phenotype
A. is genetically wild-type, but has a bicoid mutant mother. B. is mutant for bicoid and has a bicoid mutant mother. C. may be either genetically wild-type or mutant for bicoid, but definitely has a bicoid mutant mother. D. can be either genetically wild-type or mutant for bicoid. The genotype of the mother cannot be determined from the information provided. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about maternal genes? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · 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?
Dependence on animal for fertilization and dispersal is characteristic of many species of:
a. ferns b. angiosperms c. mosses d. conifers e. cycads
The direct visualization of a developing fetus to diagnose disorders is called
a. chorionic villus sampling. b. preimplantation diagnosis. c. amniocentesis. d. fetoscopy. e. senescence.
Because archaea were first found in environments that lacked oxygen or were very hot, acidic, or salty, they were nicknamed "extremophiles."
a. true b. false