The introductory passage describes how Vibrio cholerae bacteria can take up gene

Question

The introductory passage describes how Vibrio cholerae bacteria can take up genes from their prey through horizontal gene transfer. Based on the introductory passage and the material in the chapter, classify the following examples of gene transfer as horizontal gene transfer, vertical gene transfer, or neither.

options

a. DNA from mature organism to mature organism

b. transformation

c. a gene that is different in two related species as a result of a mutated ancestral gene

d. DNA from virus to mature organism

e. conjugation

f. transduction

g. transpostition (by transposable elements)

h. a gene shared by several species inherited from a common ancestor

i. DNA from parent to offspring

Explanation / Answer

A. DNA from mature organism to organism- horizontal

B.Transformation-Horizontal transfer , transformation is the uptake of naked DNA from the surrounding area

C.Vertical transfer - From one generation to other.

D.Virus to mature organism- Neither , there is no particular direction.

E.Conjugation-Horizontal- Transfer of genetic material directly from one cell to another directly through a conjugative plasmid.

F.Transduction- Neither- Its the transfer of genetic material through viruses.

G.Transposition- Horizontal- It is the jumping of genes from one positions to other.

H.Vertical Transfer- genes coming from ancestors is an example of vertical gene transfer.

I. Vertical Transfer.

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