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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.
TEET H - Study of teeth is odontology. Accumulation of oral bacteria & their products on teeth is plaque. Some acids are secreted by bacteria causing carries.
In During translation, the series of an mRNA molecule is examined from its 5' end by ribosomes that then synthesize an appropriate polypeptide. Together in prokaryotes and in eukar
DIFFERENCE S BETWEEN MYOSIN AND ACTIN FILAMENTS Myosin filaments (primary filaments) Actinfilament s (secondary filaments)
What is Temperate Grasslands? Grasslands are known by their common names in different regions of the world, such as the plains or prairies in North America, the steppe in Asia,
Q. Explain about Dietary Management? Treatment for gout often include a diet of lower purine intake. Indeed, about one third of the body's uric acid can be attributed to diet.
Q. How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be branchial or cutaneous. Cutaneous respiration takes place due to
Define Structural Elements - Biological Functions of Proteins? Structural proteins are fibrous proteins. The well known of the fibrous proteins are possibly the keratins, which
Q. ST Depression only on Recovery? Although ST depression during exercise often persists into recovery, it may not manifest until exercise has been terminated. The reasons for
MOD E OF HORMONE ACTION THROUGH EXTRACELLULAR RECEPTORS - The molecules of amino acid derivatives, peptides or polypeptide (protein) hormones bind to specific receptor molecul
1. Awareness - First people become aware of a problem. 2. Acquire Knowledge and skills - Next, they gather knowledge and learn new skills. 3. Motivation - At the next stag
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