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!
What is RNA?
RNA is a single-stranded molecule which has as its 5-carbon sugar ribose instead of the deoxyribose found in DNA. Also, uracil is substituted for thymine as a nitrogen base. RNA is built from a DNA template in a process called transcription. The RNA then delivers the coded specifications to the cytoplasm upon which protein molecules are built. While DNA does not synthesize proteins directly, the protein structure is ultimately determined by the DNA code.
The process of transcription is similar to DNA replication. An enzyme, RNA polymerase, binds to DNA and causes separation of the complementary strands. Next, complementary base-pairing occurs between the bases of the DNA strand and complementary RNA nucleotides floating in the nucleus. Only one of the DNA strands, the template strand, is transcribed. The complementary DNA strand is called the coding strand.
Transcription begins at specific segments called initiation sites, to which RNA polymerase attaches. RNA polymerase catalyzes the transcription of DNA in only one direction, on the 3' position of the molecule. RNA polymerase catalyzes sugar-to-phosphate bonds between the RNA nucleotides until it reaches the sequence of amino acids that serves as a termination signal, when the completed RNA molecule is released.
State two characteristics of humans which distinguish them from other primates. Two features which differentiate humans from other primates are their upright posture and their
Simple diffusion Only comparatively small uncharged or hydrophobic molecules (H2O, O2, and CO2, other gases, urea and ethanol) cross the lipid bilayer through simple
Pathophysiology Distension and damage of the respiratory bronchioles selectively occur. Opening develops in the walls of the bronchioles. and they become enlarged and conf
Explain about Blood pressure Blood pressure is explained as the force exerted by the blood against the walls of the arteries. Blood pressure (BP) can be described as the fo
Q. Which are the subproducts of the photochemical phase that are essential for the chemical stage of photosynthesis? The chemical stage of photosynthesis depends on ATP and NAD
Define Basal Metabolism and Energy Expenditure at High Altitude? The energy and nutrient requirements depend upon total energy expenditure and metabolic rate of the individual.
How Cereal and Bread important for Human -Nutritional Factor? Cereals form the staple of the Indian diet. These grains are the main source of energy in the Indian diet
WRITE ON FUNGAL NUTRITION
Results: Early mortality for tricuspid valve replacement is around six per cent. But depending on the patient's class of symptoms and the number of concomitant procedures, this c
Medical Management In chronic renal failure there is irreversible renal failure. The goals of medical management are: To promote maximal renal function To ma
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd