Genes are really just segments of DNA in patterns of As, Ts, Gs, and Cs. How does an RNA polymerase "know" where to start transcribing at the beginning of a particular gene?
A) The polymerase finds the end of the previous gene and copies past that point.
B) The polymerase starts transcribing anywhere because the beginning point counts only during translation.
C) It looks for a specific promoter region that marks the beginning of a gene.
D) RNA polymerase does not know, so it has to rely on the ribosome to help it start at the correct place.
C
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Why is the energy generated from the catabolism of sugars and other macromolecules ultimately harnessed to generate ATP?
A. ATP can be used by cells to drive endergonic reactions B. ATP can be used to make RNA, which is an energy storage molecule in the cell C. ATP synthesis is an exergonic reaction D. ATP is required to generate the proton gradient in the intermembrane space of mitochondria
________ is a process common to soils found in humid environments in the tropical and subtropical regions
Fill in the blank(s) with correct word
The free-swimming adult stage of many cnidarians that reproduces sexually is a
A. larva. B. polyp. C. medusa. D. zygote.
The European cuckoo's behavior as a "brood parasite" represents what type of behavior?
A. A response that is not a behavior B. Instinctive behavior C. Imprinting behavior D. Learned behavior E. A time-dependent form of learning