To distinguish two organisms using the morphological species concept, a scientist would ____
a. perform a genetic analysis on the two organisms
b. look at the appearance of two organisms
c. mate the two organisms to see if viable offspring result
d. observe the mating rituals of the two organisms
e. trace the common ancestry of the two organisms
ANSWER: b
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Which of the following is a product of glycolysis?
a. NADH b. water c. oxygen d. carbon dioxide
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What will be an ideal response?
_________ speciation results when a population of a species is geographically isolated.
Fill in the blank(s) with the appropriate word(s).
Three major types of RNAs are mRNA, rRNA, and tRNA. For each of the conditions below, predict the consequences in terms of the population of proteins being synthesized in a particular cell and the effects on individual proteins
(a) An acridine dye—induced mutation (adds or deletes single bases in DNA) leads to an mRNA for one protein-producing gene. The condition is heterozygous in the involved cell. (b) A deletion (homozygous) that removes approximately half of the rRNA genes. What will be an ideal response?