The majority of DNA in a human can be described as
A. noncoding.
B. segmental duplications.
C. composed of short interspersed elements.
D. simple sequence repeats.
E. structural.
Answer: A
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Vitamin C is an example of what kind of helper molecule in the metabolic pathway that results in collagen?
a. Vitamin C is a coenzyme. b. Vitamin C is substrate c. Vitamin C is the active site. d. Vitamin C is a competitive inhibitor.
Many diseases, cancers, and even normal human variations can be caused by mutations and variations in the DNA nucleotide sequence. The most likely immediate result of DNA having a different nucleotide sequence is that
A. the protein resulting from the DNA mutation would be denatured and nonfunctional. B. the peptide bonds in the protein would by hydrolyzed and the protein would fall apart. C. no direct result of change in the protein molecule would occur if DNA is mutated. D. the polypeptide of a protein would be altered. E. the ability for the cell to make proteins would fail.
What molecule is the common entry point to aerobic respiration for carbohydrates, proteins and fats?
What will be an ideal response?
An individual with an uncertain vaccine history has been brought to the emergency room after receiving severe lacerations in an accident with farm machinery
In addition to administering a tetanus toxoid vaccine, he is given a shot of tetanus immune globulin (TIG), a form of passive immunization. Why are both necessary? A) The tetanus vaccine provides immediate protection, and the tetanus immune globulin provides long-term protection. B) The doctor is not sure which will work faster in this patient so decides to administer both. C) The tetanus immune globulin is given only when there are severe injuries and a high risk of infection. D) Tetanus immune globulin is always given along with the tetanus vaccine. E) The tetanus immune globulin provides immediate, short-term protection, and the tetanus vaccine provides long-term protection.