Diatoms have a special problem
A. because they must await a chemical signal from a fish before they can become mobile and search for mating partners
B. because their heavy siliceous shells impede conjugation
C. because their + and - mating strains are nonmotile and have to be dispersed by currents
D. because their two halves fit like the lid and body of a pillbox and on repeated cell divisions the half that is overlapped gets progressively smaller
E. because the gametes experience difficulty in exiting the overlapping halves of their siliceous shells
Answer: D
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1 mm = ________ nm
A) 1,000,000 B) 1000 C) 10 D) 1/1000 E) 1/1,000,000
What is a protist?
a. A prokaryote that is not bacteria b. A prokaryote that is not bacteria or archea c. A eukaryote that is not an animal, but may be a plant d. A eukaryote that is not an animal or plant, but may be fungi e. A eukaryote that is not an animal, plant, or fungi
An advantage to studying linkage disequilibrium is that ________
A) it provides another tool enabling the reconstruction of the history of genes and populations B) it provides clear evidence of speciation events C) it can be used to identify alleles that have been recently selected by natural selection D) Both A and C.
In eukaryotes, the AUG initiation codon is located in the ________ sequence
A) Shine—Dalgarno B) Kozak C) Khorana D) Goldberg—Hogness E) Pribnow