The difference in mode of inheritance between Huntington disease and cystic fibrosis is that Multiple Choice A person with Huntington disease can have unaffected parents, but a person with cystic fibrosis must have an affected parent Huntington disease does not skip generations, but cystic fibrosis can Huntington disease skips generations and only affects children, whereas cystic fibrosis can strike at any age and never skips generations Huntington disease affects females and cystic fibrosis affects males
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Couple has two offspring; one child with an autosomal recessive disease trait and one normal. What conclusions can we make about the parents? One parent must have the autosomal recessive disease. Both parents must carry the autosomal recessive disease. One parent is a carrier for the autosomal recessive disease and the other parent is normal. Both parents probably carry the autosomal recessive disease. Which of the following is generally true of an X-linked recessive pedigree? Disease affects more males than females. Pattern of skipped generations. Males are usually affected. Mothers can transmit the disease to their daughters. Which of the following genetic diseases is transmitted through autosomal recessive inheritance? Duchenne muscular dystrophy. Cystic fibrosis. Hemophilia. Huntington's disease. Diabetes mellitus type 2 can be common within a family, and yet no single gene has been identified causing the problem, although diet and exercise habits influence whether the disease develops. This disease is probably controlled by: complex gene regulation. autosomal recessive mutation. multifactorial inheritance. A 41-year-old pregnant female miscarries her first fetus. Analysis shows that the fetus had 45 chromosomes. Which of the following describes this condition? Euploidy. Triploidy. Tetraploidy. Aneuploidy. Genetic testing reveals that a woman has inherited a autosomal dominant disease gene from her mother, and yet she does not exhibit any symptoms of the disease. Which of the following could best explain this? The disease has incomplete penetrance. The disease is caused by epigenetic modifications. She is a chromosomal mosaic. She has Turner Syndrome. A healthy couple has a child with hemophilia. The couple later divorces and each remarries. Which of the following statements is correct? If the father has more children with his new wife, there is a 50% chance that his daughters will have hemophilia. If the father has more children with his new wife, there is a 50% chance that his sons will have hemophilia. If the mother has more children with her new husband, there is a 50% chance that her sons will have hemophilia. If the mother has more children with her new husband, there is a 50% chance that her daughters will have hemophilia.
Adi S.
Cystic fibrosis is a recessively inherited disease; a person needs two copies of the defective allele in order to develop the disease. Huntington Disease is dominantly inherited; a person only needs 1 copy of the defective allele to be affected. Why does only 1 allele cause disease for Huntington, but it takes two for cystic fibrosis? What is different about the proteins made by these alleles?
Madhur L.
Huntington's disease is a rare inherited disorder caused by an autosomal dominant allele of the huntingtin gene. As individuals with the disease age, their neurons degenerate at an accelerated rate compared to individuals without the disease. Which of the following pedigrees shows a likely pattern of inheritance in a family with a history of Huntington's disease? = Unaffected female = Unaffected male = Affected female = Affected male Choose 1 answer:
Jenny W.
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