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Found Alleles 14 times.

Displaying results 1 to 10.

1. Alleles
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).

2. Alleles
Alternate forms of a gene .

3. Balanced polymorphism
A type of polymorphism where the many morphs are allele s. The polymorphism is maintained in a population rather than the norm of one allele eventually becoming the only allele in the population, because individuals who are heterozygous , or have two different alleles, are more adaptive (more "fit") than individuals who are homozygous , or have two copies of the same allele.

4. Balanced stock
A genetic strain of any of several lab organisms (like fruit flies) which can be maintained as heterozygous individuals without requiring constant artificial selection for the heterozygotes, due to a number of lethal recessive gene s with the result that the homozygous females are sterile (unable to produce offspring) and the males with the wrong recessive alleles are dead. (Male fruit flies are not homozygous or heterozygous because they only have one allele per particular genetic loci in question).

5. Codominance (codominant genes)
Two allele s of a gene which result in distinctly different phenotype s, but when they are both inherited together in an individual (one from the mother and one from the father - called heterozygosity ), the individual has both of the phenotypes. For example, if one allele is for red hair and the other allele is for blue hair, then the individual will have patches of blue hair and patches of red hair. (This is in contrast to incomplete dominance , where the individual would inherit a blend of the two alleles and have purple hair).

6. Codominance
A type of inheritance in which heterozygotes fully express both alleles .

7. Dominance
The property of one of a pair of alleles that suppresses the expression of the other member of the pair in heterozygotes .

8. Genetic drift
Random changes in the frequency of alleles from generation to generation; especially in small populations, can lead to the elimination of a particular allele by chance alone.

9. Heterozygous
Having two different alleles (one dominant , one recessive ) of a gene pair.

10. Homozygous
Having identical alleles for a given gene.

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