Genes that jump from one location to another in the genome are

A. transformers.
B. repressors.
C. plasmids.
D. transposons.
E. operons.


Answer: D

Biology & Microbiology

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________ is a beneficial relationship similar to mutualism, in which the relationship is not obligatory.

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

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Marta has been having terrible headaches. Now her hand feels like it is being gripped even though it is not actually being touched. She's also having a hard time interpreting sensations

For example, she blistered her hand on a hot pan because she interpreted the heat sensation as cold. Which portion of Marta's brain is most likely damaged? A) Temporal lobe B) Hippocampus C) Parietal lobe D) Frontal lobe E) Hypothalamus

Biology & Microbiology

Yucca flowers are pollinated only by yucca moths, which lay their eggs in the flower's ovary. This interaction ensures that the plant has seed for the next plant generation and that the moth larvae have a food source to develop

What is a potential disadvantage or vulnerability of this very specialized plant-animal interaction? A) Pollination can occur only during the day, but the moths are most active at night. B) If the moths are exterminated by insecticides, the plant-animal interaction ceases and the plant will no longer be pollinated or reproduce. C) The plant ovary may be consumed by the larvae, which would kill all the developing seeds. D) Other moths that do not serve as pollinators may outcompete the yucca moths.

Biology & Microbiology

Penicillin and streptomycin are commonly used in synergism because they display the same mode of action

Indicate whether the statement is true or false

Biology & Microbiology