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The genomic substrate for adaptive radiation in African cichlid fish
The genomic substrate for adaptive radiation in African cichlid fish

... testis) were isolated from several individuals inbred for ∼ 60 generations in the laboratory of Dr. Hans Hoffman (University of Texas at Austin, Austin, TX, USA). Tissues for RNA were collected and placed in RNALater and blood was collected in a tube with the anticoagulant EDTA. Total RNA was extrac ...
Guidelines for Human Gene Nomenclature (1997)
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Speciation through evolution of sex-linked genes
Speciation through evolution of sex-linked genes

... the hypotheses of the association between sex linkage and speciation. The term ‘sex-linkage’ typically refers to loci present on the sex chromosomes, which are defined as the chromosome pair that carries the constitutive genes controlling whether an individual develops into a male or a female (Box 1 ...
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THE PALOMINO HORSE T is the purpose of this paper to
THE PALOMINO HORSE T is the purpose of this paper to

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“There is no doubt that man, as an animal, inherits characteristics

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... the future. The present communication is aimed at making widely available the proposal as developed to date. Comments, suggestions, and additions are welcome. The aims of the present proposal are: uniformity; a unique designation for each strain; convenience for typing, editing, printing, record-kee ...
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Sex Chromosomes and Sexual Selection in Poeciliid Fishes

... morphism for these characters. Several have been shown to be attractive to females: conspicuous coloration, especially bright orange and black spots, large caudal fins, large body size, and high courtship display rate (Farr 1980; Bischoff et al. 1985; Reynolds and Gross 1992; Nicoletto 1993; Endler ...
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apbio ch 14 study guide

... o In the flower-color example, the F1 plants inherited a purple-flower allele from one parent and a white-flower allele from the other. o The plants had purple flowers because the allele for that trait is dominant. 4. Mendel’s law of segregation states that the two alleles for a heritable character ...
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167KB - NZQA

... resulting offspring will have two alleles – they may inherit two alleles the same, homozygous, and show that characteristic or they may inherit one of each allele, heterozygous in which case they will show the dominant allele in their phenotype. • Genetic variation: variety within a population, eg d ...
NCEA Level 1 Science (90948) 2013
NCEA Level 1 Science (90948) 2013

... resulting offspring will have two alleles – they may inherit two alleles the same, homozygous, and show that characteristic or they may inherit one of each allele, heterozygous in which case they will show the dominant allele in their phenotype. • Genetic variation: variety within a population, eg d ...
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Genomic imprinting

Genomic imprinting is the epigenetic phenomenon by which certain genes are expressed in a parent-of-origin-specific manner. If the allele inherited from the father is imprinted, it is thereby silenced, and only the allele from the mother is expressed. If the allele from the mother is imprinted, then only the allele from the father is expressed. Forms of genomic imprinting have been demonstrated in fungi, plants and animals. Genomic imprinting is a fairly rare phenomenon in mammals; most genes are not imprinted.In insects, imprinting affects entire chromosomes. In some insects the entire paternal genome is silenced in male offspring, and thus is involved in sex determination. The imprinting produces effects similar to the mechanisms in other insects that eliminate paternally inherited chromosomes in male offspring, including arrhenotoky.Genomic imprinting is an inheritance process independent of the classical Mendelian inheritance. It is an epigenetic process that involves DNA methylation and histone methylation without altering the genetic sequence. These epigenetic marks are established (""imprinted"") in the germline (sperm or egg cells) of the parents and are maintained through mitotic cell divisions in the somatic cells of an organism.Appropriate imprinting of certain genes is important for normal development. Human diseases involving genomic imprinting include Angelman syndrome and Prader–Willi syndrome.
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