What is the minimum number of immunoglobin molecules possible if there are 3,000 variants possible for the light chain and 5,000 variants possible for the heavy chain?
What will be an ideal response?
Multiplying 3,000 ? 5,000 = 1.5 ? 107 possible combinations.
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When chromosomes have either duplications or deletions, the chances that the mutation will be harmful are a function of:
A. its sizeâ€"the smaller the duplication or deletion, the greater the chance of harm. B. its sizeâ€"the larger the duplication or deletion, the greater the chance of harm. C. its locationâ€"if it occurs in a germ-line cell, it will be more harmful than if it occurs in a somatic cell. D. its position on the chromosomeâ€"if it occurs at the tip of a long arm, it is likely to be less harmful than if it occurs at the tip of a short arm. E. None of the answer options are correct.
Nephrotic syndrome is characterized by ____
a. large amounts of protein in the urine b. the inability to thermoregulate c. the inability to urinate d. large amounts of urea in the urine e. increased urine production
Does the presence of the double bond in the hydrocarbon tail of oleic acid change the shape of the molecule? a. No, because the double bond strengthens the existing shape. b. No, because there is no double bond in oleic acid. c. Yes, because the double bond results in a bend in the molecule, forming a rightangle
d. Yes, because the double bond results in a circular structure to the molecule.
What is the first step in energy flow through an ecosystem?
a. Top-level carnivores eat the herbivores or omnivores within the ecosystem. b. Producers absorb solar energy. c. Producers absorb nutrients from the soil. d. Producers are eaten by the herbivores. e. Decomposers break down the organic matter and make it available for the producers.