A protein that has had its physical and chemical properties changed is said to be 

A. denatured.
B. dysfunctional.
C. hydrolyzed.
D. saturated.


A. denatured.

Biology & Microbiology

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Suppose several genes are grouped together in a genome and the group results in a single enzyme. If one of these genes is mutated and the enzyme is no longer active, this gene must be part of _____

A) an intron B) an operon C) a repressor D) an activator E) an inducer

Biology & Microbiology

The reduced-bony-armor allele of the Eda gene is present in only about 1% of marine populations, but is predominant in freshwater populations of stickleback fish. What can we conclude?  

_____    Bony armor increases fitness in the marine environment, but reduces fitness in the freshwater environment. _____  Freshwater fish with more bony armor have higher fitness than freshwater fish with less armor. _____  Bony armor is an environmentally-controlled trait, not a genetic trait. _____  The allele arose after the divergence of freshwater sticklebacks. _____  The freshwater environment caused a high rate of mutation in the DNA. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean?   Gather Content · What do you already know about stickleback evolution?   Consider Possibilities · Consider the different answer options. Which can you rule out?   Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?   Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Which part of the amphibian life cycle prevents them from being fully terrestrial?

a. finding a mate b. reproduction c. respiration d. obtaining food e. locomotion

Biology & Microbiology

The basic building block of a protein is called a (n)

a. fatty acid. b. monosaccharide. c. amino acid. d. gene.

Biology & Microbiology