Prokaryotes reproduce rapidly and this allows genetic variation to spread quickly through a population. Two processes can create new variations in prokaryotic populations. Select the choice with those two processes.
A. mutation and phage viral attack
B. phage viral attack and genetic recombination
C. genetic recombination and nondisjunction
D. genetic recombination and mutation
E. genetic recombination and rapid cell division
D. genetic recombination and mutation
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Natural selection involves energetic trade-offs between _____
A) choosing how many offspring to produce over the course of a lifetime and how long to live B) producing large numbers of gametes when employing internal fertilization versus fewer numbers of gametes when employing external fertilization C) the emigration of individuals when they are no longer reproductively capable or committing suicide D) increasing the number of individuals produced during each reproductive episode and a corresponding decrease in parental care E) high survival rates of offspring and the cost of parental care
Which of the following is a mechanism of aminoglycosides?
A) inhibition of cell wall biosynthesis B) prevention of peptidoglycan crosslinking C) inhibition of DNA replication D) targeting the 30S ribosomal subunit
Stretched out, an adult's gastrointestinal tract would be
a. 10?15 feet. b. 15?20 feet. c. 21?30 feet. d. 30?35 feet. e. 5?10 feet.
Which of the following cells could be created from a mitotic division but would not be created during a normal meiosis?
A) Cell G B) Cell H C) Cell K D) Cell M E) Cell P