by abhishek | Aug 8, 2020 | Periodic Table
Atomic number : 5 Atomic mass : 10.81 g.mol-1 Electronegativity according to Pauling : 2.0 Density : 2.3 g.cm-3 at 20 °C Melting point : 2076 °C Boiling point : 3927 °C Vanderwaals radius : 0.098 nm Ionic radius : 0.027 nm Isotopes : 2 Electronic shell : [He] 2s22p1...
by admin | Aug 8, 2020 | Genetics
It is the pictorial arrangement of total chromosomes of a cell according to their size during metaphase of cell division. Karyotype is made to study the abnormalities in chromosomes or to identify the sex of an organism. The karyotype of human beings is shown in fig....
by admin | Aug 8, 2020 | Genetics
Autosomes are those chromosomes which are not linked with sex. So autosomes are non-sex chromosomes. There are 23 pairs of chromosomes in human beings. Out of these 23 pairs, the first 22 pairs of chromosomes except 23rd pair are called autosomes. The chromosomes...
by abhishek | Aug 8, 2020 | Periodic Table
Atomic number : 4 Atomic mass : .9.01218 g.mol-1 Electronegativity according to Pauling : 1.5 Density : 1.86 g.cm-3 Melting point : 1280 °C Boiling point : 2970 °C Vanderwaals radius : unknown Ionic radius : unknown Isotopes : 1 Electronic shell : 1s2 2s2 or [He] 2s2...
by admin | Aug 8, 2020 | Genetics
We have already studied that every species has a fixed number of chromosomes. And these chromosomes occur in pairs. This means that there are two chromosomes of each kind, or we can say that there are two sets of chromosomes. Thus a cell in which chromosomes occur in...
Recent Comments