What is the most abundant protein in the human body?

A. Polysaccharides
B. Elastin
C. Collagen
D. Amino acid
E. Triglycerides


Answer: C

Biology & Microbiology

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Answer the following statements true (T) or false (F)

1. If a researcher determines that 25% of a liver cell's total genome encodes genes for metabolic enzymes, then he/she should assume that metabolic enzymes make up 25% of the total protein composition of the cell. 2. Liver and muscle cells have different sets of genes. 3. A single pre-mRNA can be alternatively spliced into more than one type of mRNA. 4. If an acetyl group is added post-translationally to a protein, it can be subsequently removed.

Biology & Microbiology

Below is a pedigree of a human genetic disease in which solid color indicates affected individuals. Assume that the disease is caused by a gene that can have the alleles A or a. What is/are the possible genotype(s) of person 4?



A) AA
B) Aa
C) Either AA or Aa
D) aa
E) Cannot be determined

Biology & Microbiology

How does an enzyme lower the energy of activation needed for a chemical reaction?

What will be an ideal response?

Biology & Microbiology

The cellular structure that antibiotics typically target is the cell wall.

a. true b. false

Biology & Microbiology