Page 332 - Applied Pharmacognosy

• The number of chromosomes normally present
in the plant cell nucleus is termed the somatic
number ,this number is usually an even one.

• Chromosomes are not all alike……..

• Chromosomes arrange themselves in pairs, the
two members of each pair being exactly alike in
size, position….etc.

• Thus, the complete set of chromosomes is
composed of two haploid (n) sets and such
organisms as contain them are termed diploid
(2n).

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