Bolzenschweisstechnik

Bolzenschweißtechnik seit 1970. Geräte und Schweißbolzen direkt vom Hersteller. Hohe Qualität Made in Germany

Eintrag vom: 11.04.2013.

Heterozygous (and its less common form heterozygotic) means ?relating to a cell that has two different alleles for a particular gene at corresponding positions on homologous chromosomes.?

 

Organisms that have two different alleles for a gene are called heterozygous (Gg). The offspring of the cross between the GG (homozygous dominant) and gg (homozygous recessive) plants are all heterozygous for the pod color gene.

 

For organisms that are predominantly diploid such as humans or Mendel?s peas chromosomes exist as pairs with one copy inherited from each parent. Diploid cells therefore can contain two different alleles of each gene with one allele part of each member of a pair of homologous chromosomes.

 

An organism with two of the same alleles for a particular gene is homozygous at that locus; an organism with two different alleles for a particular gene is heterozygous at that locus.

 

An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive ...

 

If the paired alleles are the same the organism?s genotype is said to be homozygous for that trait; if they are different the organism?s genotype is heterozygous.

 

For a given locus if the two chromosomes contain the same allele they and the organism are homozygous with respect to that allele. If the alleles are different they and the organism are heterozygous with respect to those alleles.

 

Heterozygous: two different alleles. Use the letter notation method (capital for dominant lowercase for recessive) to represent alleles and work out genotypes and always state the phenotype based on the combination of alleles in the genotype.