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A biosynthetic pathway proceeds from compound a to compound e in four steps and then branches.
one branch is a two-step pathway to g and the other is a three-step pathway to j. substrate a is a feed-forward activator of the enzyme and catalyses the synthesis of e. products g and j are feedback inhibitors of the initial enzyme in the common pathway, and they also inhibit the first enzyme after the branch point in their own pathways.
a. draw a diagram showing regulation of this metabolic pathway.
b. why is it advantageous for each of the two products to inhibit two enzymes in the pathway?
The human genome includes approximately 20,000 genes. However, the human body contains many more than 20,000 different proteins. How is this possible?
How denaturing a protein alters the functions of that protein. If we are bleeding by the accident, why the injury has to be deeper than epidermis.
Consider a specific codon in the genetic code that normally codes for an amino acid. Change the wobble position nucleotide to a different purine and the result is a stop codon.
Genetically modified crops are cultivated on more than 250 million acres of land worldwide. Currently, 88% of corn, 93% of soybeans, 90% of canola, and 94% of cotton grown in the United States is genetically modified. Even tilapia have been gen..
Eukaryotic cells are more complex than prokaryotic cells. Explain their differences, functions and the composition of each including how genetic material is replicated.
whats phase does the moon have to be in for a lunar eclipse to occur? solar eclipse.
A cross ia made in tomatoes between a female plant from a pure line that is trisomic for chromosome 6 and a normal diploid male plant that is homozygous for the recessive allele for potato leaf (pp).
Describe the significance of historical achievements in proving the role of microorganisms in human health and disease and maintaining health of the environment. Be sure to explain the current classification of microorganisms.
select one of the special senses to discuss. how does that sense allow us to interact with and be aware of the
How will the signaling of a neuron be affected if the voltage- gated sodium channels open at a more negative membrane potential? How will the excitability of a neuron be affected by sodium channels that open at more positive membrane potentials?
What makes up DNA i mean are the chromosomes emmbedded in DNAstrand or are they seprate. The coiled DNA is it also composed of chromosomes or are they seprete?
Two of the seven different pea traits examined by Mendel involved genes that we now know are linked. Knowing this, can you explain why Mendel was still able to use results from his crossing experiments to develop the principle of independent assor..
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