When the DNA Sequence of the Gene That Codes for the Peptide

question 136

Multiple Choice

When the DNA sequence of the gene that codes for the peptide hormone insulin is compared in two mammals (e.g., humans and rats) , most of the sequence differences are synonymous mutations. These far outnumber sequence differences that result in amino acid substitutions. Why might this be?

• A)Mutations are random with respect to an organism's needs.
• B)Amino acid substitutions often result in proteins that have lost or compromised function and, therefore, are selected against.
• C)A DNA sequence is more likely to mutate if the change does not alter the amino acid sequence.
• D)Most amino acid substitutions result in a beneficial phenotype that improves fitness and results in a greater number of offspring.
• E)Synonymous mutations occur in noncoding DNA sequences.

Recognize the importance of the alignment of leadership styles with the organization's mission and goals.

Understand the impact of leadership on organizational structure and culture.

Acknowledge the significant role of chief executive officers in shaping and guiding nonprofit organizations.

Discern the critical factors in the leadership selection process for nonprofit organizations.

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Definitions:

Orbital Hybridization

A rearrangement of the orbitals in the valence shell that may occur when an atom forms covalent bonds with other atoms.

Very Strong Acid

Acids that completely ionize in solution, having a very low pH value, such as hydrochloric acid.

Organic Molecules

Compounds containing carbon atoms bonded to hydrogen atoms, often forming the chemical basis of living organisms.

Carbon

A chemical element with symbol C, essential to all known life, capable of forming a vast number of compounds including organic compounds.