Numeric relation in pyrimidine and purine bases in DNA
Describe the numeric relation among pyrimidine and purine bases in the DNA molecule? Is that relation suitable in RNA molecules?
Expert
The DNA molecule is made up of two bound polynucleotide chains which form a helical structure (that is, the double helix). The binding of the two chains is among their nitrogen having bases and it always follows the following rules: adenine (A), a purine base, joins with thymine (T), a pyrimidine base, and guanine (G), a purine base, joins to cytosine (C), a pyrimidine base. Thus in one molecule of DNA there will be similar number of adenine (A) and thymine (T) and similar number of cytosine (C) and guanine (G). The amounts of purine and of pyrimidine bases then will as well be similar in a 50 percent proportion for each kind. The relation A = T and C = G, or A/T = C/G = 1, is termed as Chargaff’s relation and the pairing rules explained above are termed as Chargaff’s rules.
In RNA there are no two nucleotide chains. The RNA is a simple chain molecule and there is no essential proportionality of nitrogen having bases to form it.
What is Pineal gland?
What do you understand by the term reflex action? Illustrate briefly.
Name the two groups of defending techniques of the Human body in opposition to harmful or foreign agents? Distinguish between them?
What do you meant by the term clonal proliferation?
What do you mean by mechanical digestion? In arthropods, molluscs, earthworms, vertebrates and birds, which organ participates respectively in this type of digestion?
Task 1 - Understand the difference between personnel management and human resource management (LO1)1a) Identify which approach, Personnel Management or Human Resource Management, your chosen organisation adopts. Discuss the difference/s between the two approaches and discuss how HRM contributes t
Write down the main functions of spleen? Why is a total splenectomy (or surgical removal of the spleen) compatible with life?
Explain the difference between macro and micronutrients?
Give a brief description of the term commensalism?
How the ovulation date is estimated with the control of the woman's body temperature?
18,76,764
1940928 Asked
3,689
Active Tutors
1428173
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!