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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.
DNA Replication Deoxyribonucleic acid (DNA) is the carrier of genetic data for all living creatures. An organism's genome, made of DNA, encodes the genetic blueprint for buildi
Define Direct measurement of individual's Work Capacity? Direct measurement of VO 2 max is determined by having the subject perform exercise at increased loads, for 12 to 15 m
In what two ways will the composition of blood coming from the pulmonary artery vary from that going to the pulmonary vein? Blood in the pulmonary artery will have less oxygen
Which one of the following kinds of animals are triploblastic? 1. Flat worms 2. Sponges 3. Ctenophores 4. Corals Flat worms
Define Observation or Inference for half and full saturation Test? 1. Starch is precipitated by half saturation with ammonium sulfate whereas dextrin is not precipitated. This
What is a distilling flask and how is it used? A distilling flask is a round bottom flask that often has two openings, and some of them have a long neck.
I have been getting assignments to write. But not for the subject I have aptitude for.Please help
By prodigality of nature it is meant that organisms have an enormous potential to reproduce. A carp or salmon is known to lay over a million eggs. A frog may lay Bs many as 12,000
Congenital Syphilis A positive serological test for syphilis in a newborn without stigmata of syphilis may be due either to passive transfer of maternal antibodies or to prena
Q. Spontaneous deamination of cytosine: 1. Deamination of cytosine is common and results in conversion of cytosine to uracil 2. can be repaired by excision repair process (i)
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