An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. How many protons does boron have? An uncharged atom of boron has an atomic number of 5 and an atomic mass of 11. How many protons does boron have?
a. 5
b. 11
c. 6
d. 16
e. 0
Ans: a. 5
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Suppose you take a cell from an adult cow and attempt to use it to produce a clone of that cow. If telomerase is not
functioning in that cell or in any of the cell’s progeny, what would you expect to happen to your clone?
a. The clone will be unable to grow. b. When the clone matures, it will most likely have cancer. c. The clone's cells may divide, but after a certain number of generations, cell division will stop. d. The lack of telomerase should have no effect on the clone. e. When the clone matures, it will most likely be sterile.
The nucleus of an atom is composed of two subatomic particles, ________ and ________.
A. protons; electrons B. neutrons; electrons C. protons; neutrons
The accompanying figure shows that the rate of alarm calls made by black-tailed prairie dogs is dependent on a perceived threat by a predator. This behavior affects ________
A) the direct fitness of the caller B) the indirect fitness of the caller C) both the direct and indirect fitness of the caller D) neither the direct nor indirect fitness of the caller
A sterile mule is produced by mating a horse and a donkey. From this observation you could conclude
A. that horses and donkeys are the same species. B. that horses and donkeys are different species. C. that mules are a result of macroevolution. D. increasing the number of mules in a population will affect the allele frequency in the next generation. E. the DNA sequences of horses and donkeys are more than 97% identical.