1. Cell Division and cell elongation : Auxins stimulate cell division in cambium and also in the primary meristems. Cell elongation brought about by additional production of wall materials (see mechanism of auxin action) is an important physiological role played by auxins. Another important characteristic of auxin is its differential action on shoot tip and [...]
1. Distinguish between autopolyploid and allopolyploid? Ø In Autopolyloid there is increase in the number of same set of chromosomes where as in Allopolyploid there is increase in the number of chromosomes of different types in the same individual. 2. Name one morphological and one chromosomal character of a Down’s syndrome? Ø The facial appearance [...]
1. Who coined the term chromosome? Ø Waldeyer (1888) was the man who coined term chromosome. 2. What is meant by Ploidy? Ø The total number of chromosomes present in cell of an organism is called Ploidy. 3. What are the symbols for haploid and diploid? Ø Symbol for haploid is X or n and [...]
