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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.
Q. Mismatch and Recombinational repair? Mismatch repair: 1. Mismatches can take place when DNA polymerase inserts wrong nucleotide during replication 2. Mismatch repair is
Minimal space between implants and implant and adjacent tooth It is important to maintain a distance of at least 1.5 to 2 mm between an implant and adjacent tooth and a distanc
Differentiation - Morphogenesis and Tissue Organisation It should be clear to you that a single cell, the fertilized egg, gives rise to various structures that we mentioned. S
What is crossing over? In which period of meiosis does this event occur? Crossing over is the eventual exchange of chromosomal fragments among homologous chromosomes. The pheno
Which one of the following does not follow the central dogma of molecular biology? 1. Pea 2. Mucor 3. Chlamydomonas 4. HIV HIV is the central dogma of molecular bi
What is the difference between the lateral and the apical buds of the plants? Lateral buds are portions of meristematic tissue situated in the base of the shoots. Apical bud
You measure the stability of your favourite protein kinase and find that half of the protein is degraded every 10 minutes. How might you test whether the protein is degraded throug
Explain Oedema - Clinical Signs of Kwashiorkor? Oedema: Oedema refers to accumulation of fluid in the tissues and usually begins with a slight swelling in feet gradually spread
Define Regents for Determination of Inorganic Phosphorus? 1. Trichloroacetic acid (10%) - Dissolve 100 g of high grade crystalline acid in distilled water and dilute to 1 Litre
What are plant hormones? Plant hormones, also known as phytohormones, are substances that control the embryonic development and the growth of the adult plant.
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