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In many plants, the morphology and physiology of leaves is different in the sun and the shade. Suggest at least two ways that growing shoots might detect whether they were in the sun or the shade. Design a test to discover the mechanisms by which plants perceive this difference and change the developmental patterns of leaves. For the first way, I know that concentration of Far Red Phytochrome plays a key role in sensing about of sunlight, but I am unsure of the second or how to test it.
Elegans is a small diploid roundworm used in genetic experiments. When essential muscle genes like actin and myosin in these worms are homozygous for mutations that disrupt the gene significantly.
Determine which of the following repair pathways do not involve the use of a homology dependent repair system?
In humans the presence of chin and cheek dimples is dominant to absence of dimples, and ability to taste the compound PTC is dominant to the inability to taste the compound.
While discussing their findings, authors have ignored a main threat to the validity of their estimates of the exposure. Explain and discuss this error.
An isolated piece of skeletal muscle tissue is genetically engineered so that gap junctions are expressed in muscle fibers. Create a plot of the length-tension relationship for this modified muscle tissue.
The main ecological imbalance on Earth is between the human species and the rest of Earth's biota. Determine two specific actions we could do to achieve a balance
In mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal dominant allele. If a dwarf female from a pure line is crossed with a pink male from a pure line, Determine the phenotypic ratios in the F1 and F2 in..
Suppose that the equilibrium potential for sodium ion across a skeletal muscle is +66 mv at a temperature of 37 degree celcius when the external concentration is 145 mM
What component of root-tip cells is stained by Safranin in the permanent mount of a longitudinal section of a corn root tip? What component of root-tip cells does Fast Green stain? What could different stains such as these indicate with respect to ce..
Explain why would we evolve so that when we are stressed our immune system is suppressed? Discuss how would this increase survival? What is the adaptive value of reflexes?
Explain the causes, symptoms, effects of the bulimia and anorexia. Describe the mechanism of their reversible effects. Determine the net change of the Gibbs free energy for a DNA machine.
Diabetes and obesity are two metabolic diseases characterized by insulin resistance and a low grade inflammation. Seeking an inflammatory factor causative of the onset of insulin resistance.
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