Which of the following bonds is weakest?

a. ionic
b. single covalent
c. polar covalent
d. nonpolar covalent
e. hydrogen


E

Biology & Microbiology

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Beadle and Tatum discovered that metabolic pathways are studied most effectively using which of the following techniques?

A) creating multiple gene mutations resulting in nonfunctional enzymes specific to a metabolic pathway B) adding intermediates to a metabolic pathway C) removing all intermediates of a metabolic pathway D) creating single gene mutations resulting in nonfunctional enzymes specific to a metabolic pathway

Biology & Microbiology

Homologous genes within a species are called paralogs

Indicate whether the statement is true or false

Biology & Microbiology

The microtubule-organizing center (MTOC)

A) serves as a site for microtubule and microfilament assembly. B) acts as an anchor for both ends of the microtubule. C) is associated with two centrioles in plant cells. D) is called a centrosome during interphase. E) is positioned near the cell membrane.

Biology & Microbiology

All of the following have radial cleavage patterns

EXCEPT a. snails. b. squids. c. earthworms. d. sea stars. e. insects.

Biology & Microbiology