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 38 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
Excellent

vickybb89

  • Member
  • Posts: 347
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

The Nucleus Is Enclosed by a Double Membrane The Nucleus Is Enclosed by a Double Membrane
Lateral Geniculate Nucleus Lateral Geniculate Nucleus
The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v
Release of Dopamine in the Nucleus Accumbens Release of Dopamine in the Nucleus Accumbens
Caudate Nucleus and Stereotyped Behavior in Autism Caudate Nucleus and Stereotyped Behavior in Autism
Nucleus Nucleus
Video: Diversity of Living Creatures - Charles Darwin & the Beagle's Voyage

For a complete list of videos, visit our video library