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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.
Surface area The rate of oxidation increases in direct proportion to the surface area of the lipid exposed to air. Furthermore, as surface - volume ratio is increased; a given
Define Influence of Gardening on the Development of Botany? The influence of gardening on the development of botany may be seen in the work of John Gerard (1545-1612). Gerard p
List the five major phases of the cell cycle, and briefly explain what happens during each phase. G1 phase: the cell grows. S phase: DNA is copied. G2 phase: the cell prepares
The North Island saddleback or tieke, Philesturnus rufusater, is an endemic New Zealand bird. Saddlebacks inhabit the middle or lower layers of the forest, and eat small invertebra
what are genetics and evolution
What is the mode of nutrition of Ascaris?
Diastolic dysfunction is responsible for one third of cases of heart failure alone and rest two third of cases in combination with systolic dysfunction. Diastolic dysfunction c
Define the Recommended Dietary Allowance for Vitamin B 12 (RDA)? Vitamin B 12 deficiency is common in true vegans who can be treated with small doses since the daily requirem
Q. What do you mean by Cytotaxonomu and biosustematics? Towards the end of the 19 th century and in the early years of the 20th century, botanists were faced with a problem of
The book that I rented is missing some pages. How can i get a replacement?
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