Parthenogenesis is a method of reproduction in which
a) an egg develops without being fertilized by a sperm
b) the parent animal divides into two new animals
c) an egg develops after being fertilized by a sperm
d) the offspring develops as an outgrowth of the parent's body wall
Ans: a) an egg develops without being fertilized by a sperm
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During protein synthesis in eukaryotes, what happens during RNA splicing?
A. The product of translation, called the primary transcript, is cut and some pieces are joined back together to form the mature mRNA. B. The product of transcription, called the primary transcript, is cut and some pieces are joined back together to form the mature tRNA. C. The product of transcription, called the secondary transcript, is cut and some pieces are joined back together to form the mature mRNA. D. The product of transcription, called the primary transcript, is cut and some pieces are joined back together to form the mature mRNA. E. The product of transcription, called the primary transcript, is cut and all pieces are joined back together to form the mature mRNA.
Which "alternate" hypothesis might also explain industrial melanism?
A. Dark moths are more resistant to the toxic effects of pollution than light moths. B. Dark moths emigrate out of polluted areas to escape the pollution. C. Pollution kills important tree species that peppered moths depend on for egg laying. D. Because dark moths absorb more heat, they are more active and better able to avoid bird predation. E. Birds used the marks that Kettlewell placed on the moths when he released them to help them find and capture the moths. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about natural selection? What other information is related to the question? Choose Answer Given what you now know, what information 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?
Which of these molecules may be found on both surfaces of the plasma membrane, but never spanning between them?
a. cholesterol b. integrin c. peripheral protein d. phospholipid
Eukaryotic gene controls govern ________
a. transcription b. RNA processing c. RNA transport d. mRNA degradation e. translation f. protein modification g. transcription, RNA processing, RNA transport, mRNA degradation, and translation h. all of these