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

Author Question: Which of the following has a pyknotic nucleus? a. Pronormoblast b. Basophilic normoblast c. ... (Read 63 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
on: Jun 25, 2018
Which of the following has a pyknotic nucleus?
 
  a. Pronormoblast
  b. Basophilic normoblast
  c. Polychromatophilic normoblast
  d. Orthochromic normoblast

Question 2

Which of the following is true of red cell precursors as they mature?
 
  a. The nuclear-to-cytoplasmic ratio increases.
  b. The cells become larger.
  c. The cytoplasm becomes less basophilic.
  d. The nucleoli become more prominent.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stillxalice

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: D
The orthochromic normoblast has a pyknotic nucleus, meaning that the chromatin is fully condensed. After this stage, the cell no longer needs the nucleus and it is extruded or expelled. The nucleus of the pronormoblast is diffuse (dispersed); that of the basophilic is beginning to show some condensing; and that of the polychromatophilic condensing even more.

Answer to Question 2

ANS: C
In general, basophilia decrease as the red cell matures (one exception to this: the basophilic normoblast is characteristically more basophilic than its precursor, the pronormoblast). The nuclear-to-cytoplasmic ratio actually decreases, the cells become smaller, and nucleoli become less prominent and eventually disappear.


CQXA

  • Member
  • Posts: 546
Reply 2 on: Jun 25, 2018
Thanks for the timely response, appreciate it

  • Member
  • Posts:
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Herniated disk. A herniated disk is a protrusion of the disk’s gelatinous center, called the nucleus Herniated disk. A herniated disk is a protrusion of the disk’s gelatinous center, called the nucleus
Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc
Transport of HIV mRNAs from the nucleus to the cytoplasm Transport of HIV mRNAs from the nucleus to the cytoplasm
Nucleus. Nucleus.
In 1964 a team of Russian scientists smashed a neon nucleus into a plutonium tar In 1964 a team of Russian scientists smashed a neon nucleus into a plutonium tar
In 1974 a UC Berkeley group fired an oxygen nucleus at a californium target. Giv In 1974 a UC Berkeley group fired an oxygen nucleus at a californium target. Giv
Video: Role of ATP in muscle movement

For a complete list of videos, visit our video library