Which bacterial structures are important for adherence to surfaces?
A. endospores
B. cell walls
C. fimbriae
D. capsules
E. flagella
Answer:
C. fimbriae
E. flagella
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What contains both vector DNA and chromosomal DNA?
A. recircularized vectors B. recombinant vectors C. open vectors
Pyruvate is the end product of
a. glycolysis. b. acetyl-CoA formation. c. fermentation. d. the Krebs cycle. e. the citric acid cycle
Which condition shows 100 percent penetrance?
a. sickle cell disease b. cystic fibrosis c. polydactyly d. camptodactyly e. eye color
Choose the answer that corresponds with the correct matches between the phylogenetic tree type (1, 2, or 3) and the information it represents (i, ii, or iii):
1. cladograms 2. phylograms 3. chronograms i. a tree that has its branch tips aligned and indicates only the evolutionary relationships among the taxa shown ii. a tree in which the branch lengths represent actual time rather than the amount of evolu-tionary change iii. a tree in which evolutionary relationships and the amount of sequence change along each branch by using branches of different lengths a. (1-i), (2-ii), and (3-iii) c. (1-ii), (2-i), and (3-iii) b. (1-i), (2-iii), and (3-ii) d. (1-ii), (2-iii), and (3-i)