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Why acquired traits are not directly related to the process of evolution?
As acquired traits are not genetically determined, they cannot be passed on to offspring. Therefore, they cannot cause a population to change over generations.
Explain in sequence the events that lead to the development of a 3-celled pollen grain from microspores mother cell in angiosperms.
Birds and Mammals - Heart is 4 chambered. 2 auricles & 2 ventricles. Sinus venosus & truncus arteriosus absent. Arteriovenous heart. Double circulation i.e. pre
What are the differences between astral and anastral mitosis? Astral mitosis is that in which there is structure of the aster, a structure made by the centrioles. Anastral mito
Types of Blood Vessel Arteries Arteries carry blood away form the heart via the pulmonary artery and aorta. Arterioles As major arteries begin to branch , th
Why is sub-culturing essential in plant tissue culture? Explain the process of heterosis. How is it dissimilar from inbreeding depression? Where and how is urea produced in
Q. What are vitamins? What are the major vitamins needed by humans? Most vitamins are coenzymes fundamental substances for the enzyme functioning that are not produced by the o
Q Where in the cell can ribosomes be found? What is the major biological function of ribosomes? Ribosomes can be found free in the cytoplasm, adhered to the external side of th
Explain the Procedure Estimation of the Amount of Bacteria? Now carry out the exercise following the steps enumerated herewith. 1. Prepare ten fold dilutions of E. coli cult
Embryonic stem cells: can differentiate into all cell types of the specialized embryonic tissues when given sufficient and necessary stimulation for a specific cell type, e.g. Plu
State about the importance of Potassium Potassium is the third major element required for plant growth, generally absorbed as K + ion. In soil 95 to 99 percent of potassium e
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