Science, asked by parasharpraveen244, 6 months ago

How can Homozygous and Heterozygous traits represented in a cross. Give examples.​

Answers

Answered by prabhat311
2

Answer:

Homozygous is a genetic condition where an individual inherits the same alleles of a gene from both the parents.

In homozygous chromosomes, both alleles are either dominant or recessive. The dominant trait is represented by two capital letters (XX) and the recessive trait is represented by two lowercase letters (xx).

Homozygous-dominant chromosomes carry two copies of the allele that codes for the dominant trait whereas the homozygous-recessive chromosomes carry two copies of the allele that codes for the recessive trait.

In homozygous organisms, the dominant trait is only expressed when both the chromosomes have a dominant gene at a similar locus.

Organisms reproducing by true breeding mechanisms are always homozygous for all traits that are held constant.

Methods of asexual reproduction, like parthenogenesis, result in homozygous chromosome formation. This ensures that the phenotypic characteristic in the offsprings is identical to that in the parents.

Mostly, homozygosity is defined at the specific locus where copies of the gene affecting a trait present on the two reciprocal homologous chromosomes are identical.

Homozygous cells or organisms are also called homozygotes.

Answered by rahulkumar24032008
2

Answer:

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