The Next Questions Refer to the Following Table, Which Compares

question 19

Multiple Choice

The next questions refer to the following table, which compares the % sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate its distance from the promoter (e.g., Intron I is the one closest to the promoter) . The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A.
% Sequence Homology

-Which of these four gene parts should allow the construction of the most accurate phylogenetic tree, assuming that this is the only part of the gene that has acted as a reliable molecular clock?

• A) Intron I
• B) Exon I
• C) Intron VI
• D) Exon V

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Definitions:

Kraepelin

Emil Kraepelin, a pioneering German psychiatrist known for his contributions to the classification of mental disorders and the foundation of modern psychiatry.

Classify Mental Illnesses

The process of categorizing mental disorders based on specific criteria and symptoms, used for diagnosis and treatment planning.

Cabanis

Likely refers to Pierre Jean Georges Cabanis, an 18th-century French physiologist and philosopher known for his work in medicine and psychology.

Somatic Factors

Physical or bodily aspects that can influence or are related to psychological wellbeing, such as biology, genetics, or health conditions.