If 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.

If 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.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter14: Human Inheritance

Section: Chapter Questions

Problem 9SA: Alleles for Tay-Sachs disease are inherited in an autosomal recessive pattern. Why would two parents...

See similar textbooks

Similar questions

a man has simpson syndrome, an addiction to certain television series. his wife does not have this syndrome. the couple has four children. A) can this syndrome be caused by autosomal recessive gene? B) Can it be caused by an x linked recessive allele ? C) What about wiggly ears?
A trait that is present in a male child but not in either of his parents is characteristic of inheritance. a. autosomal dominant b. autosomal recessive c. X-linked recessive d. It is impossible to answer this question without more information
When crossing two fruit flies with red eyes, which is a dominant trait, half of the male offspring are born with white eyes, but none of the females are. What is this an example of? A. an autosomal recessive trait B. an autosomal dominant trait C. an X-linked recessive trait D. an X-linked dominant trait
When a disease is due to polygenic inheritance, the following is probably true: A. Many factors, both genetic and environmental, contribute to the disease traits. B. It is caused by one gene with a large number of alleles. C. It affects a large number of people. D. It has many different symptoms
Huntington’s disease is an autosomal dominant disease in humans, but the first symptoms usually don’t appear until after the age of 30. If Aethelbert inherited one copy of this gene from his mother, what is the chance of him passing it on to his children?
Hemochromatosis is an inherited disease caused by a recessive allele. If a woman and her husband, who are both carriers, have three children,what is the probability of each of the following? (a) All three children are of normal phenotype. (b) One or more of the three children have the disease. (c) All three children have the disease. (d) At least one child is phenotypically normal.
As a physician, you deliver a baby with protruding heels and clenched fists with the second and fifth fingers over-lapping the third and fourth fingers. a. What genetic disorder do you suspect the baby has? b. How do you confirm your suspicion?
Alleles for Tay-Sachs disease are inherited in an autosomal recessive pattern. Why would two parents with a normal phenotype have a child with Tay-Sachs? a. Both parents are homozygous for a Tay-Sachs allele. b. Both parents are heterozygous for a Tay-Sachs allele. c. New mutations gave rise to Tay-Sachs in the child. d. b or c
Is ethical to kill an unborn child with a deadly genetic disorder? Why or why not?
A couple has one child with bilateral retinoblastoma. The mother is free from cancer, but the father has unilateral retinoblastoma and he has a brother who has bilateral retinoblastoma. a. If the couple has another child, what is the probability that this next child will have retinoblastoma? b. If the next child has retinoblastoma, is it likely to be bilateral or unilateral? c. Explain why the father’s case of retinoblastoma is unilateral, whereas his son’s and brother’s cases are bilateral.
How is this trait inherited? A. The trait is epistatic. B. The trait is X-linked. C. The trait is dominant. D. The trait is recessive.
Huntington’s Disease is a dominant lethal disease that manifests later in life after many people have had children. If you were the child of a parent who was diagnosed with Huntington's, would you want to be tested for the condition? Why or why not?