The stage of cellular respiration in which most of the ATP is produced is the citric acid cycle
__________________ Indicate whether the statement is true or false.
F, electron transport chain and chemi
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An autotroph is likely to convert CO2 into reduced organic carbon in order to produce precursor metabolites.
Answer the following statement true (T) or false (F)
The unit of transcription at the molecular level is the gene
Indicate whether the statement is true or false
Match the following items to the correct phrase.
_______1. Viruses that infect bacteria and cause the lytic cycle to occur. _______2. Term meaning complete viral particles. _______3. Are known to cause some plant diseases, but no animal diseases. _______4. Infectious protein molecules. _______5. Infectious molecules of RNA. _______6. Cause diseases such as Creutzfeldt-Jacob disease, “mad cow disease,” and “scrapie.” a. viroids b. virions c. prions d. temperate phages e. virulent phages
Can two different species that are members of the same clade have more than one common ancestor? Choose the MOST correct answer and explanation.
A. Yes. Although two species in the same clade have only one most recent common ancestor, they also have a number of older common ancestors that occurred earlier in their evolutionary history. B. Maybe. Two species in the same clade can have more than one common ancestor only in cases where horizontal gene transfer from a third, previously unrelated, species has occurred. C. Yes. Two species of the same clade always have eight common ancestors, matching the number of levels higher than species in the taxonomic hierarchy. D. Maybe. If they are members of a paraphyletic clade, they can have more than one common ancestor. E. No. Because they are members of a clade, by definition they can have only one common ancestor.