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genes and alleles (1 Viewer)
- Thread starter braindead
- Start date
By definition, alleles are "Alternative forms of a genetic locus; a single allele for each locus is inherited separately from each parent (e.g., at a locus for eye color the allele might result in blue or brown eyes)." So bb would be a pair of alleles. A pair of genes, however, is not required to be on the same locus, meaning B and R is considered a pair of genes, although they may be on different homologous chromosome pairs altogether.
actually serpents wrong
i finally worked it out
there is no real diff between gene and allele
allele is just diff ways a gene can be expressed
part of mendles first law states, 'only ONE of a PAIR OF GENES can be represented in a single gamate'
so bb, pair of alleles/genes separate.
i finally worked it out
there is no real diff between gene and allele
allele is just diff ways a gene can be expressed
part of mendles first law states, 'only ONE of a PAIR OF GENES can be represented in a single gamate'
so bb, pair of alleles/genes separate.
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I think that the text you have quoted has worded the law in a rather obscure manner... We would assume that the pair of genes are related to a single trait, but it would be better if it was worded: "Only one of a pair of genes for a particular trait can be represented in a single gamete." The phrase "a pair of genes" does not in any way suggest that they are on the same loci, but for the sake of ease, it is used with that assumption in many text.
You shouldn't be worrying too much about these little things anyway. But that's just my opinion.