Human Biology Custom Edition
11th Edition
ISBN: 9781337631532
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 20, Problem 8SQ
Genetic disorders can be caused by __________.
- a. gene mutations
- b. changes in chromosome structure
- c. changes in chromosome number
- d. all of the above
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Chapter 20 Solutions
Human Biology Custom Edition
Ch. 20 - Prob. 1RQCh. 20 - What is a carrier of a genetic trait?Ch. 20 - What evidence indicates that a trait is coded by a...Ch. 20 - Prob. 4RQCh. 20 - Explain what nondisjunction is, and give two...Ch. 20 - _______ segregate during ______. a. Homologues;...Ch. 20 - Prob. 2SQCh. 20 - Genes on the same chromosome tend to stay together...Ch. 20 - Prob. 4SQCh. 20 - A chromosomes structure can be altered by _______....
Ch. 20 - Nondisjunction can be caused by ________. a....Ch. 20 - A gamete affected by nondisjunction could have...Ch. 20 - Genetic disorders can be caused by __________. a....Ch. 20 - A person who is a carrier for a genetic trait...Ch. 20 - Prob. 10SQCh. 20 - If a couple has six boys, what is the probability...Ch. 20 - Human sex chromosomes are XX for females and XY...Ch. 20 - People with Down syndrome have an extra copy of...Ch. 20 - Prob. 4CTCh. 20 - Prob. 5CTCh. 20 - About 4 percent of people of Northern European...Ch. 20 - The following pedigree shows the pattern of...
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- Cancer causing genes are called ________. a. transformation genes b. tumor suppressor genes c. oncogenes d. mutated genesarrow_forwardMaple syrup urine disease is an autosomal recessive gene. The R allele leads to a normal protein product, whereas r leads to a mutant protein. Which genotype below will display the Maple syrup urine disease phenotype? A. Rr B. RR C. rr D. Rr and rrarrow_forwardMutations ________. a. are always bad b. have variable impacts c. are usually beneficialarrow_forward
- In addition to DNA swapping, another contributor to the uniqueness of eggs/sperm and people is ____________ that happens in _______________. A. mutations in DNA; reproductive tissues at puberty B. DNA replication errors; Interphase C. random lining up of chromosomes across the middle of the cell; Metaphase D. decondensing of chromosomes; interkinesis and cytokinesisarrow_forwardIf two mutational events are sufficient to cause some forms of cancer, what distinguishes familial forms (i.e. those that "run in families") of cancer from spontaneous cases? A. spontaneous forms inherit both mutations B. familial forms are caused by chance alone C. familial forms inherit one mutation D. there is no difference E. none of the abovearrow_forwardThese genes are involved in normal cell growth and division, but if mutated, could become more active than normal and lead to cancer cell formation. A. Oncogenes B. Tumor suppressor genes C. Proto oncogenes D. All of thesearrow_forward
- A cell in this stage of cancer no longer makes the set of proteins that is was originally instructed to make but has not migrated into surrounding tissues; thus at this stage a tissue specific protein production profile could be used to identify a cancer. a. carcinoma, in situ b. dysplasia c. hyperplasia d. malignant tumorarrow_forwardThe main function of a DNA molecule is to______ . a. store heritable information b. carry a translatable message c. form peptide bonds between amino acidsarrow_forwardA female born with Angelman syndrome carries a deletion in theAS gene (i.e., the UBE3A gene). Which parent transmitted thedeletion to her?a. Her father c. Either her mother or fatherb. Her motherarrow_forward
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