In a hybrid zone, ________ can occur if the reproductive barrier between two species is weak, as seen among cichlids in the murky waters of modern Lake Victoria
A) reinforcement
B) fusion
C) allopatric speciation
D) reproductive isolation
Answer: B
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An important bacterial mediated process that occurs on the surface of plant roots is called ________ nitrogen fixation.
What will be an ideal response?
Which of the following is an example of reproductive cloning?
A. Bringing our favorite dog Buster back to life by producing a puppy with the exact same DNA B. Producing new skin cells from an individual's DNA to aid in skin grafts after a severe burn C. replicating the insulin gene for the production of transgenic bacteria D. All of the above
Synaptonemal complexes form during
A. prophase of meiosis I. B. prometaphase of meiosis I. C. prophase of meiosis I and meiosis II. D. prophase of meiosis II. E. prometaphase of meiosis II.
Which current method allows for classification of
both cultivable and non-cultivable prokaryotes? a. isolation and observation b. protein analysis c. lipid analysis d. DNA sequencing e. none of these