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Small Dictionary |
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Allele:
in the somatic cells for every gene, they are
always present two alleles, generally only one of the two manifest one and
is stretched to mask the effect of the other; the first one therefore is
defined dominant and according to recessive.
Dominant
Allele:
it prevails on the recessive allele, that it is
manifest only when finds joined to an identical recessive other allele it.
Recessive Allele:
contrary of dominant, incapable to express itself
if carried from both chromosomes does not accredit.
Autosomico:
character legacy to the not sexual chromosomes.
Chromosome:
chemically composed of deoxyribonucleic acid (DNA)
and proteins, present in all the visible cells and to the optical microscope
only during the mitosis. The chromosomes DNA is subdivided in unit, calls
geniuses, that they are responsible of the maintenance and the transmission
of the hereditary characteristics of the organism.
Eumelanina:
black melanin.
Phenotype:
Aspect of an organism and that is with of the
characters that manifest themselves. To times, but not always, the phenotype
reflects the genotype.
Feomelanina:
tawny melanin.
Genotype:
with of the geniuses of which an organism he is
effectively bearer and that it can be transmitted to the successive
generation.
Sex-tied: character legacy to the sexual chromosomes. |
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Many of the photos in this page, and
those to connected it, are the work of the study of Dr. Massimo Natale.
Thanks also to Alcedo Edizioni, Giovanni Marmolino, Mario Zampaglione and to Camille
Jamar for their collaboration.
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