define allele, heredity, mutation,gene and law of dominance
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ALLELES = (WARNING - THIS WORD CONFUSES PEOPLE; READ SLOW) alternative forms of the same gene. Alleles for a trait are located at corresponding positions on homologous chromosomes.
The Law of Dominance
In a cross of parents that are pure for contrasting traits, only one form of the trait will appear in the next generation. Offspring that are hybrid for a trait will have only the dominant trait in the phenotype
.Transmission of each trait from one generation to the next is carried out by discrete units, which we now call genes. (Some people believe that Mendel already had this idea before he did the actual breeding experiments.)
The Law of Dominance
In a cross of parents that are pure for contrasting traits, only one form of the trait will appear in the next generation. Offspring that are hybrid for a trait will have only the dominant trait in the phenotype
.Transmission of each trait from one generation to the next is carried out by discrete units, which we now call genes. (Some people believe that Mendel already had this idea before he did the actual breeding experiments.)
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Alleles:
Two or more alternative forms of a gene present at the same loci (position) of homologous chromosomes and controlling the same character are called as alleles.
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