Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
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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Students have asked these similar questions
Mutations resulting from x-radiation are due to changes in ___________.
A. ATP
B. DNA
C. ADP
D. Rh
An individual can inherit a gene in which expression has been altered by an ________ change with no mutation of the gene sequence.
Choose the description in column 2 that best matches each gene in column 1.
p53
c-myc
A.
tumor suppressor gene
B.
oncogene
Please choose the correct answer. If a recessive mutation kills an individual during the early stages of its development, what is the possible mode of inheritance exhibited if a recessive F1 with heterozygous parents survives?
a. epigenetic inheritance
b. maternal inheritance
c. maternal effect
d. organelle inheritance
Chapter 20 Solutions
Human Biology (MindTap Course List)
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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- A. Mutation in chromosome 17 can result to galactosemia type 1 B. Mutation in chromosome 9 can result to galactosemia type 1 A. Both statements are incorrect B. Both statements are correct C. Statement B is correct D. Statement A is correctarrow_forwardA medical research firm developed a new test for bipolar disorder that tries to identify if specific series of genome codes are missing in a person's DNA. What is the focus of the firm's test? Select one: a. chorionic villus samples Incorrect b. copy number variations c. diathesis-stress markers d. autosomal mutationsarrow_forwardChoose the option that best fits the blank. Henrietta Lacks was female, so, naturally, all the cells from her derived cancerous cell line have _________ chromosomes. A. Only X B. X and Y C. Only Yarrow_forward
- _____ are characteristic of cancer. a. Malignant cells b. Neoplasms c. Tumorsarrow_forwardMany cancers are often associated with ________ A. deletion B. duplication C. translocation D. transposition E. inversionarrow_forwardAn individual’s ________ is its genotype. a. genetic composition b. number of chromosomes c. physical appearancearrow_forward
- Maple 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_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_forwardIn 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_forward
- If 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_forwardThis example can be considered as ______________. A.Modifier gene B.Gene redundancy C.Co-dominance D.Incomplete dominancearrow_forwardThe cell-free DNA test name was coined from the fact that ______. A. fetal DNA floats freely in the mother's blood, not inside the cell. B. no cell sample is required C. cells move freely in the fetal DNA D. None of the chocies are correctarrow_forward
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY