If biologists consider Ensantina klauberi and Ensatina eschscholtzii to be different species, they would likely argue that postzygotic isolating mechanisms had reinforced speciation.
a. true
b. false
Ans: a. true
(The inability to produce viable and fertile hybrids is a postzygotic isolating mechanism.)
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Most taxonomic groups with simple multicellular organisms never gave rise to complex multicellular descendants
A. true B. false
True or False: Meiosis halves the chromosome number, whereas mitosis maintains the same chromosome number
A. true B. false
Transmission genetics ____
a. studies the pattern of inheritance as traits are passed from generation to generation b. reconstructs the pattern of inheritance associated with a trait as it passes through several generations c. maps genes to study chromosome structure and abnormalities in chromosome numbers and organization d. uses recombinant DNA technology to identify, isolate, and produce millions of copies of genes that can be studied in the laboratory e. sequences the complete human genome
Franklin’s assignment at King's College was to
investigate the structure of a. proteins. b. coal. c. DNA. d. carbohydrates. e. lipids.