​ Figure TB 9-9

question 27

Multiple Choice

​
Figure TB 9-9

-What is illustrated in the accompanying figure?

• A)null case
• B)main effect
• C)intervention
• D)crossover

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Definitions:

Duchenne Muscular Dystrophy

A genetic disorder characterized by progressive muscle degeneration and weakness due to alterations of a protein called dystrophin that helps keep muscle cells intact.

Chromosome Deletions

Genetic mutations involving the loss of a segment of DNA from a chromosome, potentially causing diseases or disorders.

X Chromosome

One of the two sex chromosomes, playing a key role in determining genetic sex and carrying genes for many other non-sex related traits.

Pedigree

Chart of family connections that shows the appearance of a phenotype through generations.