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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Joe has classic hemophilia, an X-linked recessive disease. Could Joe
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A 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
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autosomal mutations
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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- Currently, a few heritable human diseases ________ treated with some success by introducing a normal copy the gene into the patient’s cells. a. have NOT been b. have beenarrow_forwardCystic Fibrosis is caused by which of the following? a. Replacement of three nucleotides with a new three nucleotide sequence b. Addition of three nucleotides c. Deletion of three nucleotidesarrow_forwardIf a genetic disease is inherited on the basis of an autosomal dominant gene, one would expect to find which of the following? A. Affected fathers have only affected children. B. Affected mothers never have affected sons. C. If both parents are affected, all of their offspring have the disease. D. If a child has the disease, one of his or her grandparents also had the disease.arrow_forward
- Color blindness is inherited in a(n)_____ pattern. a. autosomal dominant c. X-linked dominant b. autosomal recessive d. X-linked recessivearrow_forwardPlease 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 inheritancearrow_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_forward
- Human body cells are diploid, which mean they______ . a. divide to form two cells b. have two full sets of chromosomes c. contain two chromosomesarrow_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_forwardif two genes are linked ____ A. they are on different chromosomes B. they assort independently C. they code for the same protein D. they are on the same chromosomearrow_forward
- Marfan Syndrome is a dominant trait inheritance in humans. It is a disorder that affects the connective tissue in many parts of the body. 1. What is/are the possible genotype/s of the mother if her husband does not exhibit the disease, but their children unfortunately got the disease? A. MM or Mm B. Mm only C. MM only D. mm only E. Mm or mm 2. What is/are the possible genotype/s of the children if both parents do not exhibit Marfan Syndrome disease? A. mm only B. Mm only C. MM only D. MM or Mm E. Mm or mm 3. What is the probability of having a normal child if the mother does not have the disease while her husband has the disease? A. 0% only B. 0% or 100% C. 0% or 50% D. 50% only E. 100% 4. What is the probability of having a girl child with Marfan Syndrome if both mother and father has the heterozygous genotype for the disease? A. 1/4 B. 1/2 C. 3/4 D. 3/8 E. 1/8arrow_forwardThe characteristics that genes express, whether they are physical, behavioral, or biochemical, are a person's __________. Group of answer choices a.phenotype b.penetrance c.haplotype d.genotypearrow_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_forward
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