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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.
We are living in an unprecedented age of biological discovery and the application of biological knowledge. Programmed DNA sequencing delivered, in the year of 2001 over the 2.6
tell me the general characters of monopisthocotylea
Demonstration of specific antigen(s): The presence of the viral antigen in the infected tissues and cells can be demonstrated by fluorescent antibody technique (FAT) and
Q. Dietary Recommendations during Diarrhoea? The diet should take into account the normal RDI and various adjustments made to the quantity and quality of the foods to be given.
Explain the Mendel's Laws in genetics? Based on the results of his experiments, Mendel proposed three laws regarding the inheritance of traits: the Law of Segregation, the Law
What are vitamins? What are the main vitamins needed by humans? Most vitamins are coenzymes (fundamental substances for the enzyme functioning) that are not formed by the organ
Board spectrum antibiotics are effective against several diff. types of harmful bacteria ex: tetracycline
Language, a powerful tool for communication should have played a very important part in the evolutionary history of human species. Two relevant questions that could be asked of hum
Calculate the pH - microbial survival and growth? Presence of microorganisms also depends on the pH of the medium. Most bacteria grow optimally near neutral pH (optimum 6.5 - 7
Determine about the Secondary minerals Secondary minerals are formed under conditions of temperature and pressure found at the Earth's surface by the weathering of pre-existi
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