A human disease example in which a dominant allele that is lethal in homozygous state is Huntington’s. A person that is heterozygous for Huntington’s disease and a normal individual had four children together. What is your expected outcome for the surviving children (ratio-wise for the genotype)? What is the percentage of the childre
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
A human disease example in which a dominant allele that is lethal in homozygous state is Huntington’s. A person that is heterozygous for Huntington’s disease and a normal individual had four children together. What is your expected outcome for the surviving children (ratio-wise for the genotype)? What is the percentage of the children that are expected to survive? Draw a punnett square to support your answer
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