Primary and secondary constrictions of a chromosome
Define the primary and secondary constrictions of a chromosome? Write the other name provided to the secondary constriction?
Expert
Primary constriction is the narrower area of a condensed chromosome where the centromere, the structure which unites similar chromatids, is situated. Secondary constriction is an area identical to the primary constriction, narrower than the normal thickness of the chromosome as well, and in common it is associated to genes which coordinate the formation of the nucleolus and control the ribosomic RNA (or rRNA) synthesis. For this cause the secondary contrictions (which can be one or more in chromosome) is termed as nucleolus organizer region (or NOR).
Write down the inharmonious ecological interaction?
Name the classes in which phylum Arthropoda is divided? Write down the three main ones and some of their representative species?
Write down the vector of Chagas’ disease? How is the disease transmitted?
Guidelines for effective decision making The following guidelines may be suggested as an aid of effective decision making: 1.&nb
TYPES OF DECISIONS 1 Programmed and non-programmed decisions: Simon has classified all decisions into two classes: 1 Pro
List the types of the animal tissue?
Which is the additional embryonic membrane whose purpose is to store nitrogen wastes of the embryo? Is this function existed in placental mammalian embryos?
As among the 64 codons of mRNA, 61 codify amino acids which form polypeptide chains. Describe the functions of the three remaining codons?
What is the significance of the –R group (that is, variable radical) in an amino acid molecule?
Which kind of chemical reaction is the breaking of macromolecules into smaller ones which takes place in digestion? Describe the enzymes which contribute in this process termed?
18,76,764
1952357 Asked
3,689
Active Tutors
1449523
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!