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Explain the factor Chromosomal Inheritance?
A huge step forward in our understanding of heredity came in 1902, when a biologist named Walter S. Sutton proposed that Mendel's "factors" are carried on chromosomes. Sutton observed that chromosomes occurred in pairs that segregated during meiosis, one of each pair going to each gamete. He observed that the gametes contained only half the number of chromosomes in the adult organism. His observations explained the cellular basis for Mendel's laws of segregation and independent assortment.
Define two ways in which genetic recombination occurs during meiosis. Genetic recombination happens during crossing- over and independent assortment.
Q. What are the mitochondria? What is the fundamental morphology of these organelles and in which cells can they be found? Mitochondria are the organelles in which the most sig
The excretion by the human kidneys 1. Descending limb of Loop of Henle is impermeable to water 2. Distal convoluted tubule is incapable of reabsorbing HCO3 3. Nearly 99 p
RECORDS AND REPORTS: The principles of administration are described as 'POSDCORB'. The 'R' stands for recording and reporting. Recording and reporting is related to all oth
Q. What are the hormones secreted by the adrenal cortex? What are their respective functions? The cortical portion of the adrenals secretes hormones of the corticoid (or cortic
Unified Cell Theory The present unified cell theory states that All living things are composed of either a single Cell or of the cells and cell products. The cell is a m
Starch is one of the most common storage products in seeds. What happens to the starch before it can be used by the germinating seed? Starch is insoluble and has to be changed,
What is the inactivation of the X chromosome? What is a Barr body? Inactivation of the X chromosome is a phenomenon that happens in women. As women have two X chromosomes only
THEO R Y OF PANGENESIS - To make up the weakness of inheritance Darwin in this theory assumed the existence of Pangenes (gem mules) as small units (representives) of each par
Deoxyribonucleic acid (DNA) is the nucleic acid composed of two polynucleotide strands wound around the central axis to form a double helix; the repository of genetic information.
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