4 terms

Biology Unit 6- Evolution and Diversity among the Microbes

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Small circular DNA molecules capable of self-replication are called:

A. exons.
B. transcription factors.
C. plasmids.
D. transposable elements.
E. introns.
C-plasmids
Protists are alike in that all are:

A. eukaryotic.
B. photosynthetic.
C. marine.
D. multicellular.
E. prokaryotic.
A- Eukaryotic
The basic structure of a virus consists of:

A. Genetic information in the form of RNA, a protein coat, and reverse transcriptase in order to turn its RNA into DNA.
B. Genetic information in the form of DNA.
C. Genetic information in the form of DNA, a protein coat, and polymerase to replicate its DNA.
D. Genetic information in the form of DNA or RNA enclosed within a protein coat, along with a few enzymes.
E. Genetic information in the form of DNA or RNA enclosed within a protein coat.
E- genetic information in the form of DNA or RNA enclosed within a protein coat
Many scientists do not consider viruses to be living organisms. Why is this?

A. because they are dependent on their hosts' metabolic machinery for replication
B. because they are surrounded by a capsid
C. because they have no chloroplasts
D. because they have no genetic material
E. because they cannot be killed
A- because they are dependent on their hosts' metabolic machinery for replication
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