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The citric acid cycle evolved from preexisting metabolic pathways. Evidence includes organisms that do not use the citric acid cycle, but have genes coding for enzymes used in the citric acid cycle
Which of the statements about the evolution of the citric acid cycle are consistent with existing knowlege? Can be more than one answer!
1) Although some organisms do not use the citric acid cycle under anaerobic conditions, they use a reductive pathway similar to the citric acid cycle to generate some larger molecules.2) A reductive citric acid cycle can replenish oxidized cofactors such as NADH.3)Early organisms may have lacked the enzyme ?-ketoglutarate dehydrogenase.4) The citric acid cycle may have originated from two pathways -a reductive pathway and an oxidative pathway.5)The citric acid cycle may have evolved from two biosynthetic pathways in early life forms.
The molecules of all matter, particularly gases and liquids, are in constant vibration motion. As a result of this motion, molecules are continually colliding with one another, much like balls scattering over a pool table.how to Add a coverslip ov..
Genes A, B, and C are linked on a chromosome and found in the order A-B-C. Genes A and B recombine with a frequency of 10 percent, and genes B and C recombine at a frequency of 25 percent.
Compute the solute potential of a 0.1 M NaCl solution at 25 degrees. If the concentration of NaCl inside the plant cell is 0.15 M,
throughput a heart attack, blood flowing to the heart muscle is interrupted by blockage of a coronary artery. How would you expect the metabolism in the heart to change?
Think about an interaction between two mutually-inhibiting proteins with concentrations x and y, given through the differential equations.
Think about the meaning of the term ecology How do the ideas of energy and chemical cycles, community structure, biodiversity and succession fit together to form basis of the way natural world works?
What are the genotypes of parent orange-fruited plants. Within the two groups defined by bone mass smaller skeletons have bones with evidence of epiphyseal plates should be. Give the age group and gender of the individuals in this fine.
What biological structure does the winding stairs in Jerome's apartment resemble and what components are represented by the "rails"?
The pattern of coat coloration in dogs is determined by the alleles of a single gene, with S being dominant over s. Black coat color is determined by the dominant allele A of a second gene, and homozygous recessive aa animals are tan.
How will you find out the transcription factor binding sites in the whole genome. You have isolated a novel transcription factor. How would you decide the genes regulated by transcription factor in the whole genome.
by a series of experiments with sterilized broth, Louis Pasteur disproved the idea of what?
Joey is studying chemistry and is learning about solutions. He thought that all solutions were the same. He now knows that in addition to solutions that there are colloids and suspensions
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