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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.
Explain the Biochemical Approach in Taxonomy Comparative biochemistry is being used increasingly in the systematic of animals, both for identification of organisms as well as f
Basic Instruments /Equipment Used In biochemical laboratories and important Working tips The first practical in this manual will orient you to the various equipment, apparatuses
Define about Skeletal system Skeletal system provides framework to the body; supports the soft tissues; protects delicate organs. The skeletal system is made up of bones an
I have 9 questions in my undergraduate cardiovascular physiology class I need help with. It is mostly dealing with slow response action. I need the work in about 2nite hours from n
INTRODUCTIO N - Fertilization is a complex process which involves fusion of male & female gametes. The male gamete in animals is called as sperm & the female gamete as o
Q. How execute the two complementary nucleotide chains of the DNA facilitate the replication process of the molecule? The fact that DNA molecule is made of two polynucleotide c
What is Biogenetic Law and define Bilateral symmetry? In brief, ontogeny recapitulates phylogeny. Or, developmental or embryological sequence of an animal repeats the evolution
Inter specific Incompatibility This type of incompatibility is characterized by the prevention of fusion of gametes between members of different species. The incompatibility
Cellular Totipotency The innumerable cells which constitute the body of a higher plant or animal and containing identical genetic material can be traced to a single cell-the
What is a burette and how is it used? A burette is a uniform-bore glass tube with fine gradations and a stopcock at the bottom, used particularly in laboratory procedures for a
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