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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.
Determine Causes of Iron Deficiency Anaemia? Dietary Inadequacy Poor bioavailability of iron Presence of absorption interfering substances in diet Poverty and
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What is Single S 2 In cyanotic TOF, S, consists entirely of A, as P, is attenuated by a deformed pulmonary valve when there is valvar steuosis and aorta is placed anteriorly re
Because RNA is composed of four parts of nucleotides, there are 43 = 64 possible codons, which is 64 possible triplets of nucleotides with several sequences. Furtherm
The aim of earthquake-resistant structure designing The main objectives of earthquake resistant structures are as follows: (i) To avoid loss of lives due to the destruct
Q. What is an example of a situation in which the neuron cell body is located in a part of the body and its axonal terminal portion is in another distant part of the body? Why does
Determine the Principles of BCC BCC should be integrated with program goals from the starting. BCC is a necessary part of diabetes prevention, care and support programs, and
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Which of the following statements about how B and T cells recognize antigen are true? a. B cells only recognize antigen presented by class I or class II MHC molecules. b. Both cell
CHITIN It is polymer of N-acetyl-D-glucosamine. It is a structural homopolysaccharide found in the fungal walls as fungus cellulose and as chitin in the exoskeleton of
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