Which of the following is true?1 pointNone of the answers providedSickle cell anemia is an infectious disease of the lung.Sickle cell anemia confers almost 100% resistance to malaria.A mutation in one gene copy of the hemoglobin coding gene is sufficient to cause sickle cell anemia.
Question
Which of the following is true?1 pointNone of the answers providedSickle cell anemia is an infectious disease of the lung.Sickle cell anemia confers almost 100% resistance to malaria.A mutation in one gene copy of the hemoglobin coding gene is sufficient to cause sickle cell anemia.
Solution
The correct answer is "Sickle cell anemia confers almost 100% resistance to malaria."
Here's why:
-
Sickle cell anemia is not an infectious disease of the lung. It's a genetic disorder that affects the red blood cells.
-
Sickle cell anemia does confer some resistance to malaria. This is because the sickle-shaped cells are less hospitable to the malaria parasite.
-
A mutation in one gene copy of the hemoglobin coding gene is not sufficient to cause sickle cell anemia. The disease is inherited in an autosomal recessive manner, which means that an individual must inherit two copies of the mutated gene, one from each parent, to develop the disease.
Similar Questions
In Sickle-Cell disease is caused by a mutation in a gene that codes for one of the protein's subunits. Which one of the following statements about this disease is correct?Group of answer choicesThe mutation is due to a silent mutation within the alpha subunit that changes an electrically charged amino acid to another electrically charged amino acid.acid.The mutation is due to a missense mutation within the beta subunit that changes an electrically charged amino acid to a nonpolar amino acid.The mutation is due to a missense mutation within the alpha subunit that changes an electrically charged amino acid to a nonpolar amino acid.The mutation is due to a silent mutation within the beta subunit that changes an electrically charged amino acid to another electrically charged amino.
The sickle-cell anemia allele is maintained at relatively high frequencies in some human populations because Blank______.Multiple choice question.the beta-globin gene mutates very frequently in those populationsheterozygotes for the disease allele are resistant to malariathe beta-globin gene is not subject to natural selection
Which of the following describes sickle-cell disease? Multiple select question.Red blood cells take on a translucent appearance.It is a hereditary condition.The heme part of hemoglobin is abnormal.Red blood cells are misshapen.It can be caused by iron deficiency.
Which of the following statements about sickle cell disease is TRUE?It causes a person’s mucus to the excessively thick and sticky.It primarily affects people of African descent.It is caused by having 3 copies of chromosome 21.It is a mild, painless illness that does not limit lifespan.
Which of the following is the cause of sickle cell anemia?*1 pointTryptophan is replaced by leucineLeucine is replaced by valineGlutamic acid is replaced by valineLysine is replaced by glutamic acid
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.