Which Of The Following Information Can Be Determined From Examining A Pedigree Diagram For Trait P

The male is homozygous and the female is homozygous. If most of the males in the pedigree are affected then the disorder is x linked if it is a 5050 ratio between men and women the disorder is autosomal.

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If a characteristic is controlled by more than one gene pedigree analysis may suggest that but it will be difficult to unravel the mode of inheritance of these genes simultaneously.

Which of the following information can be determined from examining a pedigree diagram for trait p. Therefore we can tell from the chart that in the couple labeled 2. If the trait is dominant then individuals with the trait will have their shapes coloured in if the trait is recessive then individuals with the trait will have unshaded circles or squares. Determine whether the disorder is dominant or recessive.

If you have enough info you can figure out if the trait is recessive dominant x linked etc. If the trait is recessive then the father in i is homozygous for the trait and the mother in i is heterozygous. If the trait is dominant then the father in i is heterozygous for the trait.

Pedigree analysis can be used to determine the mode of inheritance for a particular trait. Dominant or recessive inheritance can explain this pedigree. Interpreting a pedigree chart.

If an individual has the trait his shape is darkened. From this information along with an understanding of inheritance genotypes of individuals can often be determined. Use a separate pedigree for each trait.

In the information given usually in a title determine if the trait being discussed is dominant or recessive. The male is heterozygous and the female is heterozygous. Squares represent males and circles are used for females.

The allele for the presence of a white forelock is dominant. Explain how by examining a pedigree you can determine whether a trait is autosomal recessive autosomal dominant or sex linked. Examine the pedigree in figure 14 3.

A pedigree is a chart or list of some sort of an individuals ancestors genetics uses it to analyze mendelian inheritance. We can trace an autosomal then it is a 5050 ratio between men and women in the pedigree if it is sex linked then mostly males in the. Locate the recessive individuals in the pedigree.

When determining if a persons earlobes are attached or detached keep in mind that there can be a range of attachment. Determine the phenotype of each person on your pedigree for each of the four traits. 1 as a practical matter pedigree analysis is most effective for traits that are controlled in a mendelian fashion by a single gene.

A pedigree is a diagram that shows the occurrence and appearance phenotype of a particular genetic trait as it is passed from one generation to the next in a given family. This is done through a series of steps. Determine if the pedigree chart shows an autosomal or x linked disease.

Here are some tips to consider as you fill out the pedigrees.

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