SOLVED

91. According to the text, most individuals harbor about ______ potentially lethal recessive genes: a. none or 1 b. 5 to 8 c. 50 to 75 d. hundreds 9 In his professional career, Andy wants to study the risk factors associated with genetic disorders and to provide information and support to parents whose risk factors are high. Andy wants to enter the field called: a. genetic counseling b. pediatric social work c. prenatology d. bioethical statistics 93. Which of the following types of information would be of LEAST interest to a genetic counselor? a. parents’ ages b. parents’ illnesses c. parents’ ethnic background d. parents’ income 94. Workers in Dr. Garcia’s lab first obtain tumor cells from patients with cancer. They then remove the DNA from the tumor cell nuclei and use enzymes to segment the DNA strands into sections. Finally, they insert the DNA sections in which they are interested into “host” bacteria cells, where the DNA can be reproduced for later use. Dr. Garcia’s lab is engaged in work involving: a. behavior genetics b. recombinant technology c. cryogenics d. autosomal transmission 95. Which of the following is the best summary of the current state of gene therapies, such as the use of retroviruses? a. The theoretical work about how such processes might work is still incomplete. b. Gene therapies have been developed but ethical concerns have prevented their use in humans at the present time. c. Gene therapies have been developed and tried, but with limited success so far. d. Gene therapies are used routinely with very good success in treating a number of genetic diseases. 96. Viruses used in gene therapy that are capable of penetrating cells and inserting modified DNA into them are called: a. recombinant viruses b. re-engineered viruses c. retroviruses d. macroviruses 97. The field of behavior genetics relies most heavily on data gathered from: a. chromosomes b. diseased tissue c. psychological tests and interviews d. viruses 98. If it were possible to know exactly what genetic information was contained in an individual’s genes, would the field of behavioral genetics have any usefulness? a. No b. Yes, because some genes are recessive c. Yes, because some traits are polygenic d. Yes, because the way traits are expressed is often dependent on the environment 99. The extent to which biologically related people show similar characteristics is measured by a technique called: a. genetic engineering b. recombinant technology c. concordance d. behavioral genetics 100. Dr. Smith studies a group of 1,000 people who have schizophrenia and who also have identical twins. He finds that 47% of the identical twins also develop this disease. The type of statistical information Dr. Smith’s study reveals is called: a. concordance b. an H-E (Heredity-Environment) Index c. a genetic-based percentage d. analysis of variance