The Floating Ribs Are

question 168

Multiple Choice

The floating ribs are

• A)ribs 11-12.
• B)also called vertebrosternal ribs.
• C)ribs 1-7.
• D)ribs 11-12 and also called vertebral ribs.
• E)also called vertebrosternal ribs and ribs 1-7.

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Definitions:

Synonymous Sites

Locations in a gene where a mutation does not change the encoded amino acid, typically due to the redundancy of the genetic code.

Nonsynonymous Sites

Positions in a gene where changes in the DNA sequence lead to changes in the amino acid sequence of the encoded protein, potentially affecting its function.

Directional Selection

A form of natural selection in which one extreme phenotype is favored over other phenotypes, causing allele frequencies to shift in one direction.

Stabilizing Selection

Stabilizing selection favors individuals in the middle of the distribution of phenotypes present in a population (for example, by acting against individuals at either extreme).