Each time Cyrus drinks milk, he develops gas, bloating, and abdominal discomfort. Cyrus is probably ________

Fill in the blank(s) with correct word


lactose intolerant

Biology & Microbiology

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Consider a pizza dough made by vigorously mixing to form gluten and evenly disperse the ingredients such as baker's yeast (Saccharomyces cerevisiae)

Predict the metabolic differences yeast would have in a thinly flattened dough and in a spherical dough ball. What will be an ideal response?

Biology & Microbiology

Keratins are structural proteins in skin, hair, and fingernails. One gene, called KRT10, is located on the 17th paired chromosome in humans. It produces a keratin that strengthens skin cells. Researchers have identified several mutations that can lead to rough, damaged, blistering skin because the keratins are not as strong as normal. Each mutation changes a specific amino acid at a particular location in the protein, and so is an example of a(n) mutation.

A. missense B. duplication C. insertion D. nonsense E. frameshift

Biology & Microbiology

Both mitochondria and chloroplasts are

thought to have evolved by the process of

a. endosymbiosis. b. sexual selection. c. allopatric speciation. d. sympatric speciation. e. more than one of these.

Biology & Microbiology

What is the most commonly employed form of birth control in the United States?

A. Sperm blockage with condoms B. Prevention of embryo implantation with IUD C. Prevention of ovulation by hormonal inhibition D. Abstinence E. Sterilization

Biology & Microbiology