Founder effect- isolation of few individuals from larger population; new population forms with different gene pool. Bottleneck effect- Drastic reduction of population size leading to a restrictive gene pool in wich the population must use to recover. Forms population with different gene pool.
the 2 alleles of the gene for the trait are different on the 2 homologous chromosomesBeing heterozygous for a trait means that they have different alleles for a trait. For instance: Tt would be heterozygous and TT or tt would be homozygous because they are both eitehr little or big t's.it mean the gene is not pure or for example suppose a person is blood group A but actually he is having A and O; because O is recessive trait the gene express the A trait instead, making the person having blood group A.
A dominant gene- A gene That is "stronger" than a recessive geneA recessive gene- A gene that must have 2 of the same to have that look.ex: A gene for being tall=T (CAPITAL T)A gene for being short=t(lowercase t)TT=TallTt=talltt=shortThe GENES WHICH ARE EXPRESSED IN THE PROGENY ARE CALLED DOMINANT AND WHICH DO NOT EXPRESS ARE CALLED RECESSIVE
The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.
The outward appearance of a trait is called a phenotype.the alternative form of a gene is called an "allele." Alleles occur at the same locus on homologous chromosones, thus govern the same trait. This term is sometimes used sysnonymously with "gene."
The different forms of a gene are called alleles.
The name for different forms of a gene is allele. >A< (A.S.Apex approved :P)
The name for different forms of a gene is allele. >A< (A.S.Apex approved :P)
The name for different forms of a gene is allele. >A< (A.S.Apex approved :P)
Do you mean allele? An allele is a different molecular form of the same gene.
The different forms of a gene are called alleles.
the alternative form of a gene is called an "allele."
alleles
Heterozygote
a form of a gene apex
The different forms of a gene are called alleles.
different form of genes are called allele