What macromolecules were being studied in Exercise 19?
What will be an ideal response?
nucleic acids, proteins, lipids and carbs
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An inherited human disorder, familial dysautonomia, results from a nucleotide mutation in the gene IKAP that is expressed in the nervous system
The decreased IKAP protein leads to abnormal development, and the resulting disease is usually fatal by age 30. The nucleotide change alters splicing. If this change affects only the nervous system and not the immune system, in which the gene is also expressed, what feature must be found in this gene?
RNA silencing involves
A) miRNAs. B) siRNAs. C) double-stranded RNA. D) a protein called Dicer. E) All of these
The food-borne disease that involves neurotoxin is ________.
A. Clostridium perfringens gastroenteritis B. gastrointestinal anthrax C. Bacillus cereus intoxication D. botulism
Which of the following biomes is characterized by rich soils, insufficient rainfall for trees, and many herbivores?
A. chaparral B. taiga C. desert D. tundra E. grasslands