Metallic ions such as Ca2+, Na+, and Fe3+ readily form ____
a. polar covalent bonds
b. van der Waals forces
c. ionic bonds
d. hydrogen bonds
e. nonpolar covalent bonds
C
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During the club fungus life cycle ________ hyphae will fuse to form a ________ cell
a. haploid, diploid b. diploid, dikaryotic c. haploid, dikaryotic d. diploid, haploid e. dikaryotic, diploid
Which of the following do I need to amplify the DNA for gene X and not for gene Y?
a. Some prior knowledge of the sequence of gene X so appropriate primers can be designed. b. a heat-stable DNA polymerase c. restriction endonucleases that cut gene X and not gene Y d. plasmid vectors that have multiple antibiotic resistance genes. e. A cDNA library and access to probes for gene X
Which technique can be used to detect mutated genes?
a. DNA probes b. biopsy c. x-rays d. MRI e. radioactive monoclonal antibodies
In bristle worms, what is the name of paired, fleshy extensions of the body wall that are used for locomotion and gas exchange?
a. setae b. parapodia c. septa d. metanephridia