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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.
Devonian is the period of geologic time from 410 - 360 million years before the present. Life on land diversified, with amphibians appearing late in this period of time. Plants we
How is the cerebrum anatomically divided? The cerebrum is divided into two cerebral hemispheres, the right and the left. Each hemisphere is made of four cerebral lobes: frontal
Considering the hybridization in a trait like the color of the flowers of a given plant species (red/yellow) conditioned by a pair of different alleles in relation to complete domi
What is Mendelian Genetics? Mendelian Genetics : In 1868, an Austrian monk, Gregor Mendel, first published the basics of a study we now call Mendelian genetics. Mendel obser
State about Dental implant reconstruction Dental implant reconstruction requires a thorough knowledge and understanding of the various strategically important anatomic landmark
Minor Criteria These are arthralgia, fever, prolonged PR interval, raised ESR and C-reactive protein levels. In some cases abdominal pain and epistaxis may occur. Other non spec
Explain the effect of Non Nutritional Factors pregnancy? The incidence of LBW is lowest and mean birth weight is highest in the state of Kerala, which is attributed to better
Consider a time when the membrane voltage of a SA node cell in the heart is at its minimum value (near -80 mv). At this time, A. all the voltage-gated calcium channels will be
Define Fish as a rich source of protein? The edible portion is skeletal muscles of the body. Even though the skeletal muscles of different animals are basically similar, fish s
Q. Define Maxillofacial Prosthodontics? Dental implants are now been increasingly used for Maxillofacial Prosthodontics. Maxillofacial Prosthodontics involves the prosthetic re
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