Home
Class 12
BIOLOGY
Assertion- The true nucleus is genrally ...

Assertion- The true nucleus is genrally absent in E. coli and other prokaryotes.
Reason- An undifferentiated, unorganised fibrillar nucleus without any limiting membrane is observed in prokaryotic cells.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion

C

Assertion is true, but Reason is false

D

Assertion is false, but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
A
E. coli is a well-studied prokaryotic cell. These lack true nucleus and membrane bound organelles lilke mitochondria, undifferentiated, unorganised fibrillar nucleus without any nuclear membrane in prokaryotic cells. The genetic material of prokaryotic cell is dispersed in cytoplasm and is known as nucleoid.
Promotional Banner

Topper's Solved these Questions

  • MONERA

    ARIHANT NEET|Exercise Chapter exercises Medical entrances gallery (Collection of questions asked in NEET & various medical entrance exams)|47 Videos

  • MONERA

    ARIHANT NEET|Exercise Chapter exercises Medical entrances special format questions (Match the columns)|4 Videos

  • MINERAL NUTRITION

    ARIHANT NEET|Exercise Chapter Exercises (C) Medical Entrances gallery (Collection of questions asked in NEET & Various Medical Entrance Exams)|70 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    ARIHANT NEET|Exercise Chapter exercises C( Medical entrances gallery ( collection of questions Asked in NEET & Various Medical Entrance Exams ))|140 Videos

Similar Questions

Explore conceptually related problems

Assertion . True nucleus is absent in E. coli and other prokaryotes. Reason. An undifferentiated , unorganised, fibrillar nucleus without any limiting membrane is found in prokaryotic cells.

Assertion : Bacteria are prokaryotic. Reason : Bacteria do not posses true nucleus and membrane bound cell organelles.

Assertion : The cells that have membrane bound organelles are called eukaryotic. Reason : The cells that lack membrane bound organelles are called prokaryotic.

Assertion (A): Bacteria come under prokaryotes. Reason (R): They lack a well-defined nucleus.

Assertion : Ribosomes are non-membrane bound organelles found in the prokaryotic cells only. Reason : Ribosomes are present only only in the cytoplasm.