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Q. Describe Palynological Evidence?
Palynology is the study of pollen and spores. The taxonomic characters of pollen grains include wall structure, polarity, symmetry, shape and grain size. In angiosperms pollen grains are of two kinds viz. Monocolpate and tricolpate. Monocotpate pollen grains are boat shaped, have one long germinal furrow and one germinal aperture. This is characteristic of primitive dicotyledons and majority of monowtyledons. According to some palynologists the first flowering plants had monocolpate pollen grains. Tricolpate grains are globose, symmetrical, have three germinal apertures and are characteristic of advanced dicotyledons.
Why does one need to study about soil and what is its importance? You would be aware that, from the dawn of agriculture, cultivators were attracted to fertile soils of river
Classification of Enzymes It has been a long tradition of giving enzymes names ending in 'ase'. The only major exception to this 'ase' is the proteolytic enzymes, whose names
Q Which is the kind of nitrogen waste birds produce? Why does this feature, besides being an adaptation to the terrestrial environment, also mean an adaptation to flight? Birds
Please answer the following two questions on Sequence X: 1) DNA sequence databases 1. What is the EMBL-Bank accession number for this sequence (use BLAST)? 2. Which gen
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Give ditail account on regernation in invertebrates and vertabrites
What are some of the presumed target substrates for cyclin-dependent kinases?
Embryology This is the study of growth, fertilization, division or differential of the zygote into embryo of early development of living beings before the attainment of structure
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