Morgan's Student Sturtevant Demonstrated That the Recombination Frequencies Between a Series

question 33

Multiple Choice

Morgan's student Sturtevant demonstrated that the recombination frequencies between a series of linked genes is additive.Examine the following recombination data from Sturtevant, and determine the proper order of the genes on the Drosophila X chromosome.Assume y is in the 0.0 position.Gene 1 Gene 2 Recombination frequency yellow(y) vermilion(y) 0.322 vermilion miniature(m) 0.030 white(w) vermiliom 0.297 yellow white 0.010 white miniature 0.337

• A)y m v w
• B)y w v m
• C)y m w v
• D)y w m v

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Definitions:

Shell-Type

Referring to a design of transformer or other electromagnetic device where the windings are surrounded by a magnetic core, enhancing efficiency and concentrating the magnetic field.

Tape-Wound

A type of magnetic core construction method where thin strips of magnetic material are wound into a coil to reduce eddy currents and increase magnetic efficiency.

Toroid

A doughnut-shaped component used in magnetic circuits, with a coil of wire wrapped around a ferromagnetic core to concentrate magnetic fields.

Tape-Wound Core

A core made by winding a continuous length of magnetic metal into a spiral.