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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.
by our eyes we can see the beautiful world but is there anything in our eyes which makes it beauiful??
Chromophore - Development of plant The chromophore is a tetrapyrrole molecule like chlorophyll, but unlike chlorophyll it is an open tetrapyrrole and contains no metal ion. It
Give an example of how two organisms are interdependent.
The cytosolic surface of the erythrocyte plasma membrane is covered through a network of peripheral membrane proteins which make up the cytoskeleton in the figure. The
Q. What do you mean by biodigester? A biodigester is equipment that produces hydrogen sulfide, carbon dioxide and fuel gases (biogases) like methane from organic material under
Q What are the kinds of cell respiration? There are two types of cell respiration aerobic cell respiration a reaction with participation of molecular oxygen (O2) and anaerobic
what major nerve do you think is being compressed when a person often feel pain in the posterior surface of the thigh radiating to the area behind the knee and where is the likely
Explain Standard titration - Estimation of Vitamin C in Lemon Juice? Pipette 5 ml of standard ascorbic acid solution into a 100 ml conical flask. Fill the burette with the dye s
You now know that natural seleqtion aims at evolving adaptations of organisms in response to environmental changes in the inanimate world. Also many adaptations arise due to intera
Biotin Biotin forms long, colourless needles or a white crystalline powder. It is sparingly soluble in cold water, but more soluble in hot water and dilute alkalis. Biotin is s
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