This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following decreases the ability of malaria species to infect RBCs? a. Duffy-positive ... (Read 65 times)

chads108

  • Hero Member
  • *****
  • Posts: 507
on: Jun 25, 2018
Which of the following decreases the ability of malaria species to infect RBCs?
 
  a. Duffy-positive phenotype
  b. Heterozygosity for hemoglobin S (Hb S)
  c. Hereditary spherocytosis
  d. Rh-negative genotype

Question 2

A patient has crescent- or banana-shaped malarial gametocytes. Which of the following is probably true regarding the species of malaria and its clinical course?
 
  a. Plasmodium malariae, which is benign and needs no treatment
  b. Plasmodium ovale, which is found mostly in Southern United States and is usually fatal
  c. Plasmodium falciparum, which is the most clinically serious
  d. Plasmodium vivax, which is the most clinically serious


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Hdosisshsbshs

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: B
Heterozygosity for Hb S decreases the ability of malaria species to infect RBCs so infected individuals do not develop severe complications. RBCs lacking the Duffy phenotype are not vulnerable to malaria. Neither the Rh-negative genotype nor hereditary spherocytosis provides protection from infection with malaria.

Answer to Question 2

ANS: C
Plasmodium falciparum has crescent- or banana-shaped gametocytes. This is the most clinically serious form of malaria.


chads108

  • Member
  • Posts: 507
Reply 2 on: Jun 25, 2018
YES! Correct, THANKS for helping me on my review

Animal_Goddess

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Positive and Negative Symptoms of Schizophrenia Positive and Negative Symptoms of Schizophrenia
A patient’s cognitive ability depends on his or her psychologic status, which is influenced by ... A patient’s cognitive ability depends on his or her psychologic status, which is influenced by ...
How to find two positive angles less than 360° that have a tangent of −2.25 How to find two positive angles less than 360° that have a tangent of −2.25
The ability of a community to cope, adapt to, and mitigate the accelerating impact of climate change The ability of a community to cope, adapt to, and mitigate the accelerating impact of climate change
Positive and Negative Reinforcement Positive and Negative Reinforcement
Video: Structures that affect circulation - heart and MABP

For a complete list of videos, visit our video library