On a scientific expedition into new territory, you discover a previously undescribed organism living

within the very hot environment of a geyser. This organism has a cell wall, is single celled,
heterotrophic, and has no true nucleus. In what kingdom would you most likely place this organism
and why? What will be an ideal response?


Concepts to Consider: Characteristics of this organism indicate it is a prokaryote; its habitat may
indicate that it belongs to the kingdom Archaebacteria.

Biology & Microbiology

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In 1978, Arber, Smith, and Nathans won the Nobel Prize in Physiology and Medicine for work with restriction enzymes. Which of the following can still be performed without using these enzymes?

A) PCR of whole genomes B) genetic mapping C) sequence cloning D) vector packaging E) making recombinant DNA

Biology & Microbiology

The process of DNA replication is conservative

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

What proportion of the solar radiation that reaches Earth's surface is visible light?

A) A small fraction is visible light. B) Most of the radiation is absorbed by rocks on Earth's crust. C) About half is visible light. D) It is captured by plants and used in photosynthesis. E) About 90% of it is visible light.

Biology & Microbiology

Work by (Ehrlich/Koch/Pasteur) contributed to the foundation of immunology, the study of the body's defenses against disease.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology