#Question id: 5289
#Unit 8. Inheritance Biology
A donor strain of bacteria with genes a+b+c+ is infected with phages to map the donor chromosome with transduction. The phage lysate from the bacterial cells is collected and used to infect a second strain of bacteria that are a_ b_ c_.
Based on the above, which one of the following conclusions is correct?
#Question id: 3482
#Unit 11. Evolution and Behavior
Which statement below about mating behavior is correct?
A) Some aspects of courtship behavior may have evolved from agonistic interactions.
B) The degree to which evolution affects mating relationships depends on the degree of prenatal and postnatal input the parents are required to make.
C) The mating relationship in most mammals is monogamous, to ensure the reproductive success of the pair.
D) Polygamous relationships most often involve a single male and many females, but in some species this is reversed
#Question id: 26471
#Unit 3. Fundamental Processes
#Question id: 23152
#Unit 13. Methods in Biology
#Question id: 59
#Unit 1. Molecules and their Interaction Relevant to Biology
Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?