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Explain Crossing Over in genetics?
Crossing over is when the arms of homologous chromosomes exchange segments (and therefore genes) with each other. Recall that one of the homologues originally came from the father's sperm and the other came from the mother's egg.
During Prophase I of Meiosis the homologous chromosomes pair up to form a tetrad. The arms of the chromatids overlap, and can sometimes swap portions. This exchange results in a genetic recombination of the parental genes, providing for genetic variation, the raw material for evolution.
Define Functions of Carbohydrate - Source of energy? Glucose is a major source of energy for all the body cells. One gram of carbohydrate provides 4 Kcal. RBCs are particularly
Water Water usually forms about 50% to90% part of living protoplasm. Life upon earth originated in the ocean and the conditions of that aqueous primeval environment have been r
Importance of Behaviour Change Communication BCC is an in built part of a diabetes prevention, care and support program. Importance of BCC: · Increase knowledge. BCC can en
Define about the Listing Plane Listing proposed that only horizontal movements of the eye are performed around a vertical axis in the equatorial plane and vertical moveme
Q. What do you mean by Current Impediments? Given the impressive list of past achievements, we expect that quantitative process to biological problems will continue to repay us
Can all the four chambers of the human heart experience systole simultaneously? Describe justifying your answer. What do you call the circulatory fluid in the body of cockroach
Use the genetic code table Assignment34 The codon GCA specifies which amino acid?
From Molecules to the First Cell The prebiotic conditions on the earth in all probability were volcanic eruptions, lightning and heavy rains. There was no trace of free oxygen
It is a hemolytic disease, which makes in newborn. Maternal IgG antibodies cross the placenta and destroy the red bleed cells. This develops when an Rh+ expresses an Rh antigen on
PHYLUM CHORDATA Definition and Introduction Bilateral and deuterostomial eucoelomate eumetazoa, basically possessing ,in the embryo or throughout life , a flexible,
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