Polar molecules (with +/- charges) are attracted to water molecules and are hydrophilic. Nonpolar molecules are repelled by water and do not dissolve in water; are hydrophobic.
The number of protons,neutrons,electrons, the way the are classified (earth metal, noble gas,meteoroids) and also the way they react.
Nondisjunction event during meiosis
Nondisjunction is a
process whereby sister chromatid or homologous chromosomes failed to separate
during cell division. During meiosis, Nondisjunction produce eggs or sperms
cell that don’t have the normal number of chromosome. However, there are three
forms of Nondisjunction which were:
<span> a) Failure of sister chromatids to separate during
meiosis II</span>
b) Failure of a pair of homologous
chromosome to separate in meiosis I
c) Failure of sister
chromatids to separate during mitosis.
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<em>Substitution is a type of mutation where one base pair is replaced by a different base pair. The term also refers to the replacement of one amino acid in a protein with a different amino acid.</em>
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