A genetic disease that causes death in infancy and has an autosomal recessive inheritance pattern can persist in a population because: Check all that apply.
_____ it can be passed on to the next generation by a heterozygous carrier.
_____ if both parents are carriers, they have a 50% chance of having normal children.
_____ only homozygotes for the abnormal allele will have the disease.
_____ individuals with one abnormal allele do not show symptoms of the disease.
__X__ it can be passed on to the next generation by a heterozygous carrier.
_____ if both parents are carriers, they have a 50% chance of having normal children.
__X__ only homozygotes for the abnormal allele will have the disease.
__X__ individuals with one abnormal allele do not show symptoms of the disease.
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The active ingredient orlistat acts to decrease the amount of fat that is absorbed by attaching to enzymes that digest fat. Which of the following are potential targets of orlistat?
A) salivary amylase B) pepsidase C) pancreatic lipase D) secretin
Which of the following are part of the inflammatory response? (Check all that apply.)
_____ Antibodies and interferons are produced against the antigens. _____ Histamine and other chemicals are released, which produce redness, warmth, and edema. _____ Invading agent causes the release of pyrogens, which produce a fever. _____ Neutrophils and macrophages attack the invading microbes and contribute to the pus.
You are a young M.D. and genetic researcher working in conjunction with the Human Genome Project. The charge of your laboratory is to research cures for genetic diseases. Recently the Centers for Disease Control and Prevention (CDCP) reported several cases of a new genetic disease dubbed the "Liver Quiver Syndrome." Even though little is known about the inheritance pattern of the disease, the
abnormal allele(s) cause(s) a defective protein in the membrane structure of the Golgi apparatus. This abnormal protein prevents the processing of a protein that would eventually be secreted from liver cells. Symptoms include a spasm-like condition of the liver. Thus the name "Liver Quiver Syndrome." This disease is almost always fatal, killing most victims by age 50. As a doctor and genetic researcher, discuss the genetic research that must first be completed before a cure can be found. What will be an ideal response?
Proteins that are composed of more than one polypeptide chain are said to have ________ structure
A) tertiary B) primary C) quaternary D) secondary