Download Shown below is a pedigree chart for the inheritance of achondroplasia

yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

History of genetic engineering wikipedia , lookup

Public health genomics wikipedia , lookup

Designer baby wikipedia , lookup

Biology and consumer behaviour wikipedia , lookup

Genetic engineering wikipedia , lookup

Skewed X-inactivation wikipedia , lookup

Human genetic variation wikipedia , lookup

Saethre–Chotzen syndrome wikipedia , lookup

Behavioural genetics wikipedia , lookup

X-inactivation wikipedia , lookup

Genome-wide association study wikipedia , lookup

Genome (book) wikipedia , lookup

Medical genetics wikipedia , lookup

Inbreeding wikipedia , lookup

Quantitative trait locus wikipedia , lookup

Koinophilia wikipedia , lookup

Population genetics wikipedia , lookup

Microevolution wikipedia , lookup

Hardy–Weinberg principle wikipedia , lookup

Genetic drift wikipedia , lookup

Dominance (genetics) wikipedia , lookup

Genetics Ch. 14
Pedigree Practice
Shown below is a pedigree chart for the inheritance of achondroplasia (ay-kon-druh-playzhuh), a form of dwarfism. Examine the pedigree chart, and answer the following
1. Using D to represent the dominant allele and d to represent the recessive allele,
determine the genotypes of the indicated (numbered) individuals. Record your
answers next to the circle/rectangle below. Hint: Start by indicating the
genotypes of 2, 3, and 7. Next, determine the genotypes of 1 and 4 and then
individuals 5 and 6.
2. Is the allele that causes this form of dwarfism recessive or dominant?
How do you know?
3. If the couple (individuals 5 and 6) were to have another child, what is the
probability that the child will have Achondroplasia? Explain.
4. If this condition were genetic, what might it indicate if you saw many more boys
with this condition than girls? Hint: on which chromosome might the gene be
modified 6/23/2017