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Define role of Vitamin A in controlling gene expression?
Vitamin A as retinoic acid has widespread effects on the synthesis of a variety of important proteins. These diverse effects are due largely to its combination with one or more nuclear receptors that serve as trans-acting factors that promote transcription. Several different receptors have been identified and each has a specific mode of action in growth and development. For example, should a mutation occur in the receptor, which would result in decreased retinoic acid binding, embryonic cell differentiation is affected, with the result of embryonic wastage or foetal malformation? Congenital heart malformation has been attributed to such a mechanism.
Define Termination phase - mechanism of protein synthesis? Termination: RNA polymerase recognizes the terminator, which results in no further nucleotides being incorporated and
"In these autotrophs, sporophyte is the dominant generation. Gametophyte is also photosynthetic and not dependent on sporophyte for nutrition." These autotrophs are: a. P
V i ra l Diseases A v ian encephalomyelitis This is enterovirus disease of chicken, pheasants, turkeys and Japanese quails caused by the member of the family Pi
Q. What is the epidemiological association between hemophilia and HIV infection? In the past the blood banks did not usually perform HIV detection tests and many hemophilic pat
Consider the evolution of metabolic pathways. Some biologists believe that these pathways evolved from?
Determine the Food Sources of Vitamin A? Vitamin A or retinol performed vitamin A), as you may already know, is found only in foods of animal origin, such as milk, cheese, crea
PLASM A - It is slightly alkaline non-living intercellular substance which constitutes about 60% part of the blood. It is a pale yellow but transparent and clear fluid.
Q. What are some symptoms and signs found in patients with hyperthyroidism? The hormones made by the thyroid gland stimulate the basal metabolism of the body in hyperthyroidism
Define about the Metabolism of Selenium compounds? Selenium compounds' are generally very efficiently absorbed by humans and selenium absorption does not appear to be' under ho
The client was admitted to the hospital with hypertension (high blood pressure). The development of arteriosclerosis (plaque buildup in the arteries) has increased peripheral resis
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