A Specimen That Produces a Cherry Red Color with Ehrlich's

question 74

Multiple Choice

A specimen that produces a cherry red color with Ehrlich's reagent is extracted into chloroform,and both the aqueous and chloroform layers are red.You should:

• A) Repeat the test with chloroform from a new bottle
• B) Extract the aqueous layer into more chloroform
• C) Extract the specimen into butanol
• D) Report the presence of both urobilinogen and porphobilinogen

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Definitions:

Hybrid Embryos

Embryos created through the fusion of gametes from two different species, used in scientific research for various purposes.

Prezygotic Barriers

Mechanisms that prevent mating or fertilization between species, ensuring reproductive isolation and species divergence.

Postzygotic Barriers

Reproductive isolating mechanisms that occur after fertilization, preventing the development of viable or fertile offspring between different species.

Temporal Isolation

A mechanism of reproductive isolation in which different species breed at different times, preventing them from interbreeding.