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How do the repairing enzymes of the genetic system act?
There are enzymes within the cells that detect errors or alterations in DNA molecules and start a repair of those errors. First, enzymes called as restriction endonucleases, specialized in cutting DNA molecules (also used in genetic engineering), cut the affected piece of DNA. Then polymerase enzymes build correct sequences of nucleotides correspondent to the affected piece taking as template the DNA chain complementary to the affected chain. At last the new correct sequence is bound in the DNA under repair by exact enzymes.
Image Diversity: DNA repairing system
Q. What are astigmatism and presbyopia? Presbyopia is the visual impairment in which there is loss of the cililary muscle strength thus reducing the ability of the crystalline
Explain anterior pituitary gland secretes hormones The anterior pituitary gland secretes hormones that elevate the blood glucose and therefore antagonize the action of glucose
PR E FORMATION THEORY - Proposed by Marcello Malpighi. Studied chick egg and proposed his work in "De ova-incubato". According this different part of embryo previousl
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Q. Classify the diversity of organism in different groups • The goal of taxonomy is to develop a workable classification that reflects evolutionary relationships and provides
BIL E SALTS These are sodium or potassium taurocholate & glycolate. Lethocholic acid, cholic acid, deoxycholic acid & taurocholic acids are found in bile. Helps in em
Define Quantitative or Analytical Method for Estimation of Nitrogen and Protein? You may recall reading earlier that proteins contain nitrogen along with carbon, hydrogen and s
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How do meiosis do in developing of new varieties of crops
Phenoxyethanol is dangerous and can be absorbed through the skin - official sites for toxicity data, though, show little toxicity in man and some toxicity (irritation) with high do
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