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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.
In a population with two alleles, A and a, frequency of A is 0.2. Organisms that is homozygous for A die before reaching sexual maturity. In five generations, what will be the frequency of individuals aa with genotypes.
What is ETR1?does it resemble any other gene? Explain the structure of ETR1? What are its sub family and how is it involved in Ethylene Signalling? What phenotypes are shown by the different sub family mutant plants?
A snapdragon with pink petals, black anthers and long stems was allowed to self-fertilize. From the resulting seeds, 650 adult plants were obtained.
In August 2001, a man walking his dog in Lindley Woods, near Otley, in West Yorkshire, discovered the body of 16-year old Leanne Tiernan, buried in a shallow grave.
You have been injected into the femoral vein? What is the path from the right femoral vein to the lower lobe of the right lung? What is the path that I would take from the right femorla vein to the lower lobe of the right lung via right pulmonary art..
State the key products of the Kreb's Cycle and how various of each there are starting from 1 glucose molecule.
The termination of translation occurs when a ribosome that translating an mRNA encounters a stop codon. Since there are no tRNAs that can base pair with stop codons.
The performance of a seed can be determined by studying its germination and viability potential.give One of the most significant advances in seed testing.
define treatment of phenylketonuria and galactosemia.
Explain why there are no male offspring with the allele combinations
How to calculate the resolution possible for a microscope given the wavelength and numerical aperture.
A very short physiology student is asked to analyze the blood pressure of a very tall student. She decides to measure the blood pressure at the level of the tall student's foot while he is standing
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