You are wanting to modify plant cells. With the procedure you are using, the plant cells must be in a plasmolyzed state. This means that the plant cells must be placed in a(n)
A) acid solution.
B) hypotonic solution.
C) isotonic solution.
D) basic solution.
E) hypertonic solution.
E) hypertonic solution.
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The pathway leading to the perception of sound by mammals begins with the _____
A) hair cells of the organ of Corti, which rests on the basilar membrane, coming in contact with the tectorial membrane B) hair cells of the organ of Corti, which rests on the tympanic membrane, coming in contact with the tectorial membrane C) hair cells of the organ of Corti, which rests on the tectorial membrane, coming in contact with the basilar membrane D) hair cells of the organ of Corti coming in contact with the tectorial membrane as a result of fluid waves in the cochlea causing vibrations in the round window E) hair cells on the tympanic membrane that stimulate the tectorial membrane neurons, leading to the auditory section of the brain
A dendritic cell with an antigen displayed on its surface is called a(n) ____
a. cytotoxic T cell b. plasma cell c. antigen presenting cell d. major histocompatibility complex e. CD4+ T cell
All eukaryotes have a membrane-delimited nucleus.
Answer the following statement true (T) or false (F)
Which of the following types of physical mutagens produces thymine dimer mutations?
A. gamma rays B. ultraviolet light C. X-rays D. ionizing radiation E. microwave