In a Two-Point Linkage Analysis, Genes a and B Have

question 33

Essay

In a two-point linkage analysis, genes a and b have been found to be 26 m.u. apart on the same chromosome. A third gene, c, has just been discovered and found to be located between a and b. A three-point linkage analysis with a, b, and c indicates that a and b are actually 33 m.u. apart rather than 26 m.u. Why does the three-point analysis give a different map distance for a and b than does the two-point linkage analysis, and which is more accurate?

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Definitions:

Stocks

Shares of ownership in a corporation, giving holders a claim on the corporation's earnings and assets.

Bonds

Bonds are fixed-income investments representing loans made by an investor to a borrower, typically corporate or governmental, with terms specifying repayment of principal and interest.

Negotiable

Capable of being discussed or modified in terms of agreement or transferability, often used in relation to contracts or financial instruments.

Document Of Title

A transport document that, when appropriately made out, entitles the bearer to claim the goods from the carrier.