Coastal upwelling is a common source of nutrients in the open ocean

Indicate whether the statement is true or false


F

Biology & Microbiology

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The pattern of gene transfer from Hfr to F- cells ____

a. occurs with genes furthest from the F factor being transferred first

b. can be used to map chromosomal genes in the F- cell c. was used to map the E. coli chromosome d. cannot be used to indicate the relative positions of genes within the Hfr cell e. is random because the F factor moves between different positions in the chromosome

Biology & Microbiology

Fast and ____________________ muscle fibers contract rapidly but do not produce sustained contractions, whereas slow and ____________________ muscle fibers contract slowly but can produce energy for long periods of time via aerobic respiration

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following statements is (are) true?

a. All action potentials transmitted by the same neuron are alike. b. The brain assesses a stimulus in part by which neuron pathways are active. c. Different neurons convey different information by transmitting impulses to different areas of the brain. d. A strong stimulus recruits more receptors than does a weak stimulus. e. All of these are true.

Biology & Microbiology

The most commonly occurring mutation in people with cystic fibrosis is a deletion of a single codon. This results in _____

A) a base-pair substitution B) a frameshift mutation C) a polypeptide missing an amino acid D) a nonsense mutation

Biology & Microbiology