Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The original DNA sequence when ,transcribed and translated would yield five successive valine residues. But the altered sequence would correspondingly read one aspartate and four serine residues. Mutations resulting from the addition or deletion of base pairs are called frameshift mutations. So far we have discussed the several ways in which the genetic material could be altered. Mutations could be either spontaneous or induced. In recent years there has been a more clear understanding of the causes of mutational process. Tautomeric shifts, ultraviolet radiations, chemicals such as hydroxylarnine, nitrous acid and a variety of alkylating agents can cause permanent alterations of nitrogenous bases. Aromatic compounds such as acridines can cause addition or deletion of one to more than twenty bases in DNA. We have briefly discussed mutations, a way or source of variability in natural populations. Together with recombinations occurring'at the tjnie of meiosis they form the raw materials for selection to act on. Before we discuss briefly about recombination, let us have a quick look at mutation rates in organisms.
Pituitary The pituitary is also known as hypophysis. It is composed of two embryologically distinct tissue. The anterior pituitary or adenohypophysis is derived from the roof
Chronic Aortic Regurgitation : Several factors have to be taken into account before recommending surgery. These include severity of symptoms and LV function. With evidence o
Explain briefly about the selenium Toxicity? There is a narrow margin between the beneficial and harmful intakes of selenium. The level at which selenosis occurs is not well-de
What is a stream? A stream is a incessant series of bytes that flow into or out of your program. Input and output from devices like the mouse, , disk, keyboard, screen, modem, a
Comparing to cyclostomes (primitive vertebrates) what are the main novelties presented by fishes? Compared to cyclostomes, evolutionary novelties shown by fishes are: pectoral
MODIFICATION OF MITOSIS 1 . CRYPTOMITOSIS OR PROMITOSIS : Primitive type of mitosis. In this mitosis nuclear membrane not disappear (remain intact throughout the div
Which term is used to describe an animal which limits its activity to periods of dim light at dawn and dusk? a) Diurnal (pron: die-ER-nal) b) Vesperal (pron: VESS-per-al)
What are Goitrogens? Certain chemical substances like thiocyanates, phenols, disuphides, flavanoids etc, found in the environment, can interfere with iodine metabolism. These s
On what structural level of the enzyme (primary, secondary, tertiary or quaternary) does the enzyme-substrate interaction depend? The substrate binds to the enzyme in the activ
Explain assessment of iron status - Transferrin receptors? Transferrin receptors: As iron deficiency progresses into second stage, the number of transferrin receptors on the ce
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd