Chromatin

Q.

Which of the following dye is best suited for staining chromosomes?

1. Basic Fuschin

2. Safranin

3. Methylene Blue

4. Carmine

Q. The light stained and the diffused region of the chromatin is known as

1. Heterochromatin
2. Euchromatin
3. Chromatin
4. None of the above

Q. The association of histone H1 with a nucleosome indicates:

1. DNA replication is occurring
2. The DNA is a condensed into a Chromatin Fibre
3. The DNA double helix is exposed
4. Transcription is occurring

Q. Subunit of chromatin composed of a short length of DNA wrapped around a core of histone proteins is called

1. Nucleosome
2. Chromatin fiber
3. Chromosome
4. None of the above

Q. Within the nucleus DNA is organized along with proteins into material called

1. nuclear lamina
2. chromatin
3. chromosome
4. chromatid

Q. Match the columns and identify the correct option:

	Column - I		Column - II
(a)	Thylakoids	(i)	Disc-shaped sacs in Golgi apparatus
(b)	Cristae	(ii)	Condensed structure of DNA
(c)	Cisternae	(iii)	Flat membranous sacs in stroma
(d)	Chromatin	(iv)	Infoldings in mitochondria

1. (a)→(iii), (b)→(iv), (c)→(ii), (d)→(i)
2. (a)→(iv), (b)→(iii), (c)→(i), (d)→(ii)
3. (a)→(iii), (b)→(iv), (c)→(i), (d)→(ii)
4. (a)→(iii), (b)→(i), (c)→(iv), (d)→(ii)

Q. Heterochromatin differs from euchromatin in:

1. Chemical nature
2. Degree of staining
3. Activeness of genes
4. (b) and (c)

Q. Assertion: Eukaryotic cells have more DNA than prokaryotic cells.
Reason: Eukaryotic cells are genetically more complex than prokaryotic cells.

1. Both the assertion and reason are true and the reason is the correct explanation for assertion.
2. Both the assertion and reason are true and the reason is not the correct explanation for assertion.
3. If the assertion is true but the reason is false.
4. Both the reason and assertion are false.