Define chromatin.

Define chromatin.
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1 Answer

Answer :

•Eukaryotic chromosomes consist of chromatin, a complex of DNA and protein that condenses during cell division
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Description : What is a gamete?

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Difference between chromatin and chromosomes? -Biology

Description : Difference between chromatin and chromosomes? -Biology

Last Answer : answer:

When does the chromatin lattice look shorter and thicker ?

Description : When does the chromatin lattice look shorter and thicker ?

Last Answer : Chromatin reticulum appears shorter and thicker during cell division.

What is chromatin fiber ?

Description : What is chromatin fiber ?

Last Answer : The fibrous fibers in the nucleus are called chromatin fibers.

Sex chromatin present in `:-`

Description : Sex chromatin present in `:-`

Last Answer : Sex chromatin present in `:-` A. Drum stick like in lobe of Neutrophil B. Drum stick like ... of Eosinophil D. Drum stick like in lobe of limphocyte

Hetero-chromatin is :-

Description : Hetero-chromatin is :-

Last Answer : Hetero-chromatin is :- A. Darkly stained part of chromatin B. Lightly stained part of cristae ... part of grana D. Scattered Lobes in cytoplasm

Chromatin is made up of :-

Description : Chromatin is made up of :-

Last Answer : Chromatin is made up of :- A. Nucleoprotein B. Nucleoside C. Pentose sugar D. Nitrogenous base

Why does chromatin need to condense into chromosomes before cell division?

Description : Why does chromatin need to condense into chromosomes before cell division?

Last Answer : Need answer

What phase of mitosis in which the chromosomes begin to uncoil and form chromatin?

Description : What phase of mitosis in which the chromosomes begin to uncoil and form chromatin?

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What stage do the Chromosomes form chromatin and the nuclear envelope reforms during?

Description : What stage do the Chromosomes form chromatin and the nuclear envelope reforms during?

Last Answer : telophase

What phase does the chromatin is found in the nucleus?

Description : What phase does the chromatin is found in the nucleus?

Last Answer : What is the answer ?

What stage During which stage of mitosis does chromatin condense into chromosomes?

Description : What stage During which stage of mitosis does chromatin condense into chromosomes?

Last Answer : Need answer

What does the chromatin remind you of?

Description : What does the chromatin remind you of?

Last Answer : I guess DNA

The pigment involved in photo morphogenetic movements is: (a) Cytochrome (b) Phytochrome (c) Chromatin (d) Vernalin

Description : The pigment involved in photo morphogenetic movements is: (a) Cytochrome (b) Phytochrome (c) Chromatin (d) Vernalin

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Exchange of chromatin between non-sister chromatids of homologous chromosomes is known as

Description : Exchange of chromatin between non-sister chromatids of homologous chromosomes is known as

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What is the relation between the concepts of chromatin and chromosome ?

Description : What is the relation between the concepts of chromatin and chromosome ?

Last Answer : Are euchromatin and heterochromatin part of chromosomes? Every filament of chromatin is a complete DNA molecule (a complete double helix), i.e., a complete chromosome. A DNA molecule may form ... thus both are part of chromosomes. Cell Nucleus Review - Image Diversity: chromosome structure

What are the substances that constitute the chromatin ?

Description : What are the substances that constitute the chromatin ?

Last Answer : What is the difference between chromatin and chromosome? The chromatin, dispersed in the nucleus, is a set of filamentous DNA molecules associated to nuclear proteins called histones. Each DNA filament is a double helix of DNA and thus a chromosome.

The fluid medium of the nucleus is called (a) Chromosomes (b) Nucleolus (c) Nucleoplasm (d) Chromatin

Description : The fluid medium of the nucleus is called (a) Chromosomes (b) Nucleolus (c) Nucleoplasm (d) Chromatin

Last Answer : Ans:(c)

Each of the following regarding plasma cells is true EXCEPT: C A. The nuclei display prominent peripheral chromatin B. They are derived from B lymphocytes C. They contain prominent absorptive vacuoles D. None of these

Description : Each of the following regarding plasma cells is true EXCEPT: C A. The nuclei display prominent peripheral chromatin B. They are derived from B lymphocytes C. They contain prominent absorptive vacuoles D. None of these

Last Answer : They contain prominent absorptive vacuoles

The association of histone H1 with a nucleosome indicates that (a) DNA replication is occurring (b) the DNA is condensed into a chromatin fibre (c) the DNA double helix is exposed (d) transcription is occurring.

Description : The association of histone H1 with a nucleosome indicates that (a) DNA replication is occurring (b) the DNA is condensed into a chromatin fibre (c) the DNA double helix is exposed (d) transcription is occurring.

Last Answer : (b) the DNA is condensed into a chromatin fibre

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 (a) A-(iii), B-(i), C-(iv), D-(ii) (b) A-(iii), B-(iv), C-(ii), D-(i) (c) A-(iv), B-(iii), C-(i), D-(ii) (d) A-(iii), B-(iv), C-(i), D-(ii)

Description : 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) ... iii), C-(i), D-(ii) (d) A-(iii), B-(iv), C-(i), D-(ii)

Last Answer : (d) A-(iii), B-(iv), C-(i), D-(ii)

Microtubules are the constituents of (a) centrioles, spindle fibres and chromatin (b) centrosome, nucleosome and centrioles (c) cilia, flagella and peroxisomes (d) spindle fibres, centrioles and cilia.

Description : Microtubules are the constituents of (a) centrioles, spindle fibres and chromatin (b) centrosome, nucleosome and centrioles (c) cilia, flagella and peroxisomes (d) spindle fibres, centrioles and cilia.

Last Answer : (d) spindle fibres, centrioles and cilia

Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the cytoplasm. C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Description : Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the ... activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Last Answer : C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes.

Which statement is NOT true about steroid hormones? A) They include hormones such as estrogen. B) They do not bind to cell surface receptors. C) The hormone-receptor complex can enter the nucleus. D) The hormone-receptor complex can bind to chromatin. E) Steroid hormones act faster than non-steroid (peptide) hormones.

Description : Which statement is NOT true about steroid hormones? A) They include hormones such as estrogen. B) They do not bind to cell surface receptors. C) The hormone-receptor complex can enter the ... complex can bind to chromatin. E) Steroid hormones act faster than non-steroid (peptide) hormones.

Last Answer : E) Steroid hormones act faster than non-steroid (peptide) hormones.

The thread like network in the nucleus is ________. a) chromatin b)chromosome c)cilia d)flagella

Description : The thread like network in the nucleus is ________. a) chromatin b)chromosome c)cilia d)flagella

Last Answer : a) chromatin

The association of histone H1 with a nucleosome indicates: (1) DNA replication is occurring. (2) The DNA is condensed into a Chromatin Fibre. (3) The DNA double helix is exposed. (4) Transcription is occurring.

Description : The association of histone H1 with a nucleosome indicates: (1) DNA replication is occurring. (2) The DNA is condensed into a Chromatin Fibre. (3) The DNA double helix is exposed. (4) Transcription is occurring.

Last Answer : (2) The DNA is condensed into a Chromatin Fibre.

Chromatin has two different regions, euchromatin and heterochromatin. One of these regions is highly condensed and considered an inactive region whereas the other is less condensed so it is more accessible for transcription. Which of these regions would contain genes that are being transcribed often?

Description : Chromatin has two different regions, euchromatin and heterochromatin. One of these regions is highly condensed and considered an inactive region whereas the other is less condensed so it is more ... for transcription. Which of these regions would contain genes that are being transcribed often?

Last Answer : Euchromatin. Euchromatin is less condensly packaged allowing for easier access by transcription factors and polymerases. Heterochromatin is a region of condensed packaging and considered an inactive region.

Which of the following parts of the nucleus makes ribosomes and RNA? a. Nuclear envelope b. Nucleolus c. Nucleoplasm d. Chromatin

Description : Which of the following parts of the nucleus makes ribosomes and RNA? a. Nuclear envelope b. Nucleolus c. Nucleoplasm d. Chromatin

Last Answer : b. Nucleolus