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

Author Question: Why are the red cells larger than normal in megaloblastic anemia? a. Increased concentration of ... (Read 74 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
on: Jun 25, 2018
Why are the red cells larger than normal in megaloblastic anemia?
 
  a. Increased concentration of erythropoietin
  b. Increased release of reticulocytes
  c. Cells are made larger because fewer of them exist
  d. Cell division is impaired

Question 2

Megaloblastic anemias are caused by a defect in the synthesis of:
 
  a. Deoxyribonucleic acid (DNA)
  b. Ribonucleic acid (RNA)
  c. Erythropoietin
  d. Heme


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nikmaaacs

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: D
Red cell production is asynchronous in megaloblastic anemias, with nuclear development lagging behind that of the cytoplasm. Because DNA synthesis is affected, cell division does not occur normally and the cells become larger.

Answer to Question 2

ANS: A
Defects in DNA synthesis are the cause of most megaloblastic anemias (an exception would be in the myelodysplastic syndrome).


corkyiscool3328

  • Member
  • Posts: 539
Reply 2 on: Jun 25, 2018
Wow, this really help

scottmt

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Feedback mechanisms of the thyroid gland: (1) stimulus; (2) release of TSH; (3) release of thyroid h Feedback mechanisms of the thyroid gland: (1) stimulus; (2) release of TSH; (3) release of thyroid h
Red Blood Cells Red Blood Cells
Normal heart valves Normal heart valves
Totipotent stem cells Totipotent stem cells
An electron micrograph of a synapse between two nerve cells. An electron micrograph of a synapse between two nerve cells.
Bone formation in normal mice and mutants for the runt gene Cbfa1 Bone formation in normal mice and mutants for the runt gene Cbfa1
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library