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Describe DNA replication in details?
Replication : DNA replicates itself by first breaking the hydrogen bonds between the nitrogen base pairs, and "unzips" itself into two strands. A replication fork, a Y-shaped structure, moves down the strands as DNA unzips.
Complementary nucleotides, which are floating free in the nucleus, form hydrogen bonds with each separated DNA strand at their matching nucleotide sites according to the base-pairing rule. In this way,
DNA replication is a semi-conservative process whereby each half of the original DNA strand builds a new complementary strand on itself. DNA polymerases catalyze the formation of sugar to phosphate bonds of the nucleotide monomers to complete the building of a new strand on the original strands.
Replication takes place at a very fast rate. In the bacterium E. coli, the complex makes DNA at over 1000 base pairs per second, and makes mistakes in the order of perhaps one base in a billion to one per trillion. In bacteria, there is just one point where replication begins, but in eukaryotes there are many specific origins for replication. Replication can proceed in both directions from an origin.
Define Nutritional Requirements of Fats and Oils during Pregnancy and Lactation? ICMR (1990) recommends that linoleic acid requirements should be raised to 4.5 en% during pregn
Residue is defined medically as the solid contents that have reached the lower intestine. A low residue diet is composed of foods, which are easily digested and readily absorbed, r
Why does scientist think that RNA was the first genetic material?
What is a population? The population is a set of individuals of the same species found in a given place in a given time.
Hormone s . The thyroid gland secretes following hormones. Thyroxine (tetraiodothyronine or T 4 )' and tri-iodothyronine or T 3 are secreted by the thyroid follicular cells.
Q. What is Gestational Diabetes? When a pregnant woman develops diabetes, it is known as gestational diabetes. It occurs in only 1% of the pregnant women. Pregnant women who ha
ADP-ATP system of energy exchange : In 1929 Lohmann, Fiske and subbarow published their discovery that the energy exchanges compounds in all biological systems are t
why psi g is ignored in water potential of plants?
What is a species? The species is a set of living beings able to cross among themselves generating fertile offspring. This concept though does not apply to individuals of ex
Explain Chlamydia A single 1 g dose of azithromycin (Zithromax) or 7 days' treatment with a tetracycline are both effective for treatment of uncomplicated urethral or cervical
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