Two Researchers Experimentally Formed Tetraploid Frogs by Fertilizing Diploid Eggs

question 31

Multiple Choice

Two researchers experimentally formed tetraploid frogs by fertilizing diploid eggs from Rana porosa brevipoda with diploid sperm from Rana nigromaculata.When they mated these tetraploid frogs with each other,most of the offspring that survived to maturity were tetraploid,with chromosome sets of both diploid parent species.Based on these results,if this type of tetraploid formed in the wild,what would be the result? (Y.Kondo and A.Kashiwagi.2004.Experimentally induced autotetraploidy and allotetraploidy in two Japanese pond frogs.Journal of Herpetology 38(3) :
381-92. )

• A)The two parent species would interbreed and fuse into one species.
• B)The two parent species would recognize each other as mates.
• C)The tetraploids would be reproductively isolated from both parent species.
• D)The tetraploids would be selected against.
• E)Any of the above answers could be correct,depending on the environment.

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Definitions:

GEO

can refer to Geographic Information Systems (GIS), technologies for managing and analyzing geographical data, though without context "GEO" may have multiple interpretations.

LEO

Low Earth Orbit, referring to a satellite system orbiting relatively close to Earth, often used for telecommunications, military reconnaissance, and satellite imagery.

MEO

In the context of space, Medium Earth Orbit, referring to satellites orbiting Earth at altitudes between Low Earth Orbit (LEO) and Geostationary Orbit (GEO).

Transmission Delay

Transmission delay is the time taken for a message to be transmitted from one point to another in a network, not including the time it takes for it to be propagated or processed.