Genes from different organisms with similar sequences or open reading frames (ORFs) are called ________.

Fill in the blank(s) with the appropriate word(s).


orthologues

Biology & Microbiology

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Biochemical systems within the stigma of a flowering plant prevent the pollen from a different species from developing a pollen tube and fertilizing its eggs. This is an example of what kind of reproductive isolation?

A. pre-zygotic, behavioral isolation B. pre-zygotic, temporal separation C. pre-zygotic, lock and key D. post-zygotic, temporal separation E. post-zygotic, ecological separation

Biology & Microbiology

If a plant species exhibits maternal inheritance for leaf pigmentation, what is the phenotype of the parents of a variegated (green and white leaves) plant?

A. The maternal plant must be white and the paternal plant must be green. B. The maternal plant must be green and the paternal plant must be white. C. The maternal plant must be variegated and the paternal plant can be any color. D. Both the maternal and paternal plant must be variegated. E. The maternal plant must be variegated and the paternal plant must be white.

Biology & Microbiology

As the magnification of a series of objective lenses increases, the working distance

A. decreases. B. stays the same. C. increases. D. cannot be predicted.

Biology & Microbiology

The neural circuit that allows a male stickleback fish to orient and behave aggressively towards an inanimate object with a red stripe is an example of a(n)  

A.  sign stimulus. B.  fixed action pattern. C.  innate releasing mechanism. D.  supernormal stimulus. E.  stimulus-response chain. 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 behavior in stickleback fish? 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? Reflection 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?

Biology & Microbiology