What are the different methods by which we can assign function to particular genes?
What will be an ideal response?
Functions may be assigned to particular genes of an organism by searching for sequence homology with genes of other organisms whose functions are known. Functions may also be assigned by interfering with the gene (either by making knockouts or through gene silencing by RNA interference) and studying the phenotypes produced.
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If you take into account the amount of ATP generated by ATP synthase per molecule of NADH and per molecule of FADH2 produced, and the number of ATP molecules produced by substrate-level phosphorylation, what is the predicted energy yield of the Krebs cycle, per molecule of glucose in eukaryotic cells?
A. 18 ATP B. 2 ATP C. 10 ATP D. 20 ATP E. 30 ATP 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 the Krebs cycle and ATP and NADH yield? What other information is related to the question? Choose Answer Do you have all necessary information to determine which products would affect cellular respiration? 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?
Arsenic poisoning can lead to organ failure and death. Though arsenic can inhibit or interfere with a number of cellular enzymes, arsenic poisoning is thought to be mainly due to indirect inhibition of enzymes involved in both pyruvate oxidation and the Krebs cycle. As a result, this compound must be able to enter which cellular compartment?
A. The cytoplasm B. The nucleus C. The intermembrane space of the mitochondria D. The mitochondrial matrix E. The endoplasmic reticulum 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 pyruvate oxidation and the Krebs cycle? What other information is related to the question? Choose Answer Do you have all necessary information to determine where arsenic poisoning would have its greatest impact within the cell?
What type of microscope would you use to visualize the internal structures of a chloroplast?
Support your conclusion with evidence based on the size of the structures you want to see and the resolution and magnification power of different types of microscopes. What will be an ideal response?
A ______________ group consists of the most recent common ancestor and all of its descendants.
Fill in the blank(s) with the appropriate word(s).