How do bacteria reproduce?
Answer: By binary fission (a form of asexual reproduction involving one parent) or conjugation (a form of sexual reproduction involving two parents)
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Match the following items with the correct phrases.
_______1. German measles _______2. Infectious mononucleosis _______3. Diarrhea _______4. Encephalitis _______5. Severe acute respiratory syndrome (SARS) A) Rotavirus B) West Nile virus C) Rubella virus D) A type of coronavirus E) Epstein-Barr virus
Which of the following are true about ecosystems? Check all that apply.
_____ They contain both living and nonliving components. _____ There is a transfer of energy through the system and some energy is lost as heat energy. _____ Nutrients repeatedly cycle through the ecosystem. _____ They represent the lowest level of biological organization. _____ The ultimate source of energy for most ecosystems is the sun.
Present a rationale for using DNA sequence polymorphisms as an index of genetic diversity. Is genetic diversity directly proportional to evolutionary (phylogenetic) diversity?
What will be an ideal response?
Which of the following applications of recombinant DNA technology is NOT controversial?
a. genetic screening b. biological weapons development c. metagenomics d. genetic food modification