Which is NOT true regarding temperate phages?
a. They always kill their host once infection begins.
b. A host with a temperate phage is called a lysogen.
c. The genome of a temperate phage inserted into a host’s chromosome is called a prophage.
d. They can cause lysogenic conversion, giving new abilities to their host.
Answer: A
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A substance made up of two or more elements whose properties are usually different from those of either of the two original substances
A) Polarity B) Compound C) Denaturation D) Monosaccharides E) Hydrogen bonds F) Element G) Triglycerides H) Amino acids I) Tertiary structure J) Active site
All of the following organisms are eukaryotes except:
A. Archaea B. Protozoa C. plants D. Fungi E. All of the above are eukaryotes
The sequence of development of sperm is:
A) primary spermatocyte, secondary spermatocyte, tertiary spermatocyte, spermatid, sperm. B) spermatogonia, spermatocyte, spermatid, sperm. C) immature sperm, mature sperm, secondary sperm, spermatocyte. D) primary spermatocyte, spermatogonia, sperm.
A gene has been discovered in a eukaryote that is identical to a gene of a bacterium that the eukaryote normally engulfs and digests. This is probably due to
A. horizontal evolution. B. vertical evolution. C. convergent evolution. D. horizontal gene transfer.