Biology
holandric
Term: holandric
Literally meaning: ?entirely male?
Origin: Anc Greek
????/holos(= whole, entire, all)
??????/andros(=genitive case of noun ????/aner=man, male)
Coined/History
In 1922 by Enriques in order to describe a type of inhetritance in which all males are affected and in which females neither exhibit the trait nor transmit the underlying gene.( Source:
Enriques P, 1922. Hologynic heredity. Genetics 7: 583-589.
Definition
Y-linked nonhomologous genes or loci that can only be transmitted from father to son.
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The Y Chromosome Has Several Male-specific Genes
KEY CONCEPTS:The Y chromosome has ~60 genes that are expressed specifically in testis. The male-specific genes are present in multiple copies in repeated chromosomal segments. Gene conversion between multiple copies allows the active genes to be maintained...
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Dominant Vs Recessive: Genetics
This is a picture of my moms eye. She has green eyes which are a recessive trait. Eye color is a linked trait, so she might have gotten eye color and height together on one chromosome as a single gene. This picture relates to genetics because most people...
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Aneuploidy
Term: aneuploidy (an-+eu-+ploidy)Origin: Anc Greek ??/an (=?-/a (privative meaning ?not?) or ??-/an-(=privative before a vowel)??/eu(=prefix meaning "well, good, easy" )-?????/ploos(noun) (=fold, combining form from verb ?????? /plasso(=create, make)...
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Androgen
Term: adrogen Origin: Anc Greek ?????????? < ??????, genitive of word ????/aner(=male) + ?????/genos(=generation, produced by) -à generating man Coined : In the article ?Endocrines theory and practice? in J Chemistry...
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Sex Determination In Animals
Sex chromosomes and AutosomesMost of the diploid organisms are with separate sexes. The organisms producing sperms are called males and those producing eggs (ova) are called females. Chromosome is the major factor to determine the sex of an organism. The...
Biology