In nonviral systems, what is the nature of the hereditary substance?
What will be an ideal response?
DNA (deoxyribonucleic acid) is a double-stranded polymer organized as a double helix.
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In the reaction catalyzed by aconitase, the conversion of citrate to isocitrate is inhibited by fluoroacetate. Fluoroacetate is used as a pesticide. Why is this an effective pesticide?
A. It inhibits glycolysis B. It inhibits pyruvate oxidation C. It inhibits the Krebs cycle D. It inhibits the electron transport chain E. It inhibits ATP synthase 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 cellular respiration and when citrate is converted to isocitrate? What other information is related to the question? Choose Answer Do you have all necessary information to determine why fluoroacetate is an effective pesticide? 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?
The oxygen released in photosynthesis comes from ____
a. carbon dioxide b. glucose c. ribulose bisphosphate d. water e. atmospheric oxygen
In some organisms, a normal stop codon, UGA, encodes for the amino acid
A) leucine. B) arginine. C) isoleucine. D) selenocysteine. E) cysteine.
This is the correct answer. In analyzing an outbreak of disease, the first thing is to identify the bacterial species involved. Then once you know the species you can move forward to determine if the outbreaks were all caused by the same strain. Which of the following tests can be used to help determine the species involved?
A) Phage typing B) PCR C) DNA fingerprinting D) Gram-staining