What is the function of histones in DNA packaging? -Biology

What is the function of histones in DNA packaging? -Biology
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Genetic information originates from (A) Cistron of DNA (B) Codons of mRNA (C) Anticodons of tRNA (D) Histones of nucleoproteins

Description : Genetic information originates from (A) Cistron of DNA (B) Codons of mRNA (C) Anticodons of tRNA (D) Histones of nucleoproteins

Last Answer : Answer : A

Nuclear DNA is present in combination with (A) Histones (B) Non-histones (C) Both (A) and (B) (D) None of these

Description : Nuclear DNA is present in combination with (A) Histones (B) Non-histones (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

A single DNA molecule condensed into a compact structure in vivo by complexing with accessory histones or histone-like proteins.

Description : A single DNA molecule condensed into a compact structure in vivo by complexing with accessory histones or histone-like proteins.

Last Answer : Ans. Chromosome

During the process of isolation of DNA, chilled ethanol is added to (a) precipitate DNA (b) break open the cell to release DNA (c) facilitate action of restriction enzymes (d) remove proteins such as histones.

Description : During the process of isolation of DNA, chilled ethanol is added to (a) precipitate DNA (b) break open the cell to release DNA (c) facilitate action of restriction enzymes (d) remove proteins such as histones.

Last Answer : a) precipitate DNA

With regard to histones: a. they are basic proteins b. they are essential for the formation of stable DNA c. mitochondria do not contain histones d. all above

Description : With regard to histones: a. they are basic proteins b. they are essential for the formation of stable DNA c. mitochondria do not contain histones d. all above

Last Answer : all above

True statements about the nucleic acid include: a. contains purine and pyrimidine which are bound together by covalent bonds b. there is always an equal concentration of purine and pyrimidine c. in RNA, thymine is replaced by uracil d. introns is more common than exons on the DNA e. the histones mark the excision site

Description : True statements about the nucleic acid include: a. contains purine and pyrimidine which are bound together by covalent bonds b. there is always an equal concentration of purine and pyrimidine c. in RNA, ... d. introns is more common than exons on the DNA e. the histones mark the excision site

Last Answer : there is always an equal concentration of purine and pyrimidine

An octamer of 4 histones complexed with DNA forms (a) endosome (b) nucleosome (c) mesosome (d) centromere.

Description : An octamer of 4 histones complexed with DNA forms (a) endosome (b) nucleosome (c) mesosome (d) centromere.

Last Answer : (b) nucleosome

In prokaryotes, the genetic material is (a) linear DNA without histones (b) circular DNA without histones (c) linear DNA with histones (d) circular DNA with histones.

Description : In prokaryotes, the genetic material is (a) linear DNA without histones (b) circular DNA without histones (c) linear DNA with histones (d) circular DNA with histones.

Last Answer : circular DNA without histones

Which one of the following statements about the particular entity is true ? (a) Centromere is found in animal cells, which produces aster during cell division. (b) The gene for producing insulin is present in every body cell. (c) Nucleosome is formed of nucleotides. (d) DNA consists of core of eight histones.

Description : Which one of the following statements about the particular entity is true ? (a) Centromere is found in animal cells, which produces aster during cell division. (b) The gene for producing insulin is ... cell. (c) Nucleosome is formed of nucleotides. (d) DNA consists of core of eight histones.

Last Answer : (b) The gene for producing insulin is present in every body cell.

Genophore/bacterial genome or nucleoid is made of (a) histones and non-histones(b) RNA and histones (c) a single double stranded DNA (d) a single stranded DNA.

Description : Genophore/bacterial genome or nucleoid is made of (a) histones and non-histones (b) RNA and histones (c) a single double stranded DNA (d) a single stranded DNA.

Last Answer : c) a single double stranded DNA

Thermococcus, Methanococcus and Methano- bacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that contain a cytoskeleton and ribosomes (c) archaebacteria that contain protein homologous to eukaryotic core histones (d) archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled

Description : Thermococcus, Methanococcus and Methano- bacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that ... that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled

Last Answer : (c) archaebacteria that contain protein homologous to eukaryotic core histones

What is not True for DNA in prokaryotes a) present in the form of a compact structure called nucleoid b) the coils are maintained by non-histone basic proteins c) found in cytoplasm in a supercoiled condition d) packaged as nucleosomes along with histones

Description : What is not True for DNA in prokaryotes a) present in the form of a compact structure called nucleoid b) the coils are maintained by non-histone basic proteins c) found in cytoplasm in a supercoiled condition d) packaged as nucleosomes along with histones

Last Answer : b) the coils are maintained by non-histone basic proteins

Which of the following is NOT a component of chromosomes? a) histones b) non-histone proteins c) DNA d) RNA

Description : Which of the following is NOT a component of chromosomes? a) histones b) non-histone proteins c) DNA d) RNA

Last Answer : ANSWER: D -- RNA

What are the functions of histones? -Biology

Description : What are the functions of histones? -Biology

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What are histones? -Biology

Description : What are histones? -Biology

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Why are histones positively charged? -Biology

Description : Why are histones positively charged? -Biology

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What types of proteins are involved in the packaging and condensing of DNA into tightly wound nucleosome structures of a chromosome?

Description : What types of proteins are involved in the packaging and condensing of DNA into tightly wound nucleosome structures of a chromosome?

Last Answer : Histone

Which of the following are nucleo proteins? (A) Protamines (B) Histones (C) Deoxy and Ribo nucleo proteins (D) All of these

Description : Which of the following are nucleo proteins? (A) Protamines (B) Histones (C) Deoxy and Ribo nucleo proteins (D) All of these

Last Answer : Answer : D

cis-acting elements include (A) Steroid hormones (B) Calcitriol (C) Histones (D) Silencers

Description : cis-acting elements include (A) Steroid hormones (B) Calcitriol (C) Histones (D) Silencers

Last Answer : Answer : D

Histones are (A) Identical to protamine (B) Proteins rich in lysine and arginine (C) Proteins with high molecular weight (D) Insoluble in water and very dilute acids

Description : Histones are (A) Identical to protamine (B) Proteins rich in lysine and arginine (C) Proteins with high molecular weight (D) Insoluble in water and very dilute acids

Last Answer : Answer : B

Genes are packaged into a bacterial chromosome by (a) acidic protein (b) actin (c) histones (d) basic protein.

Description : Genes are packaged into a bacterial chromosome by (a) acidic protein (b) actin (c) histones (d) basic protein.

Last Answer : basic protein

Which of the following is not true for prokaryotic organism? A.Nucleus is not bounded by nuclear membrane B.Chromosomes does not contain histones C.80S ribosomes are distributed in cytoplasm D.Cell wall contains peptidoglycan as one of the major component

Description : Which of the following is not true for prokaryotic organism? A.Nucleus is not bounded by nuclear membrane B.Chromosomes does not contain histones C.80S ribosomes are distributed in cytoplasm D.Cell wall contains peptidoglycan as one of the major component

Last Answer : C.80S ribosomes are distributed in cytoplasm

Which of the following is not true for prokaryotic organism? A- Nucleus is not bounded by nuclear membrane B- Chromosomes does not contain histones C- 80S ribosomes are distributed in cytoplasm D- Cell wall contains peptidoglycan as one of the major component

Description : Which of the following is not true for prokaryotic organism? A- Nucleus is not bounded by nuclear membrane B- Chromosomes does not contain histones C- 80S ribosomes are distributed in cytoplasm D- Cell wall contains peptidoglycan as one of the major component

Last Answer : 80S ribosomes are distributed in cytoplasm

Which of the following is not true for eukaryotic cells? A- Nucleus is bounded by nuclear membrane B- Chromosomes contain histones C- Chloroplasts and mitochondria contains 70S ribosomes D- Gas vacuoles are present

Description : Which of the following is not true for eukaryotic cells? A- Nucleus is bounded by nuclear membrane B- Chromosomes contain histones C- Chloroplasts and mitochondria contains 70S ribosomes D- Gas vacuoles are present

Last Answer : Gas vacuoles are present

Select the alternative giving correct identification and function of the organelle ‘A’ in the diagram. (a) Mitochondria - Produce cellular energy in the form of ATP (b) Golgi body - Provides packaging material (c) Lysosomes - Secrete hydrolytic enzymes (d) Endoplasmic reticulum - Synthesis of lipids

Description : Select the alternative giving correct identification and function of the organelle A' in the diagram. (a) Mitochondria - Produce cellular energy in the form of ATP (b) Golgi body - ... packaging material (c) Lysosomes - Secrete hydrolytic enzymes (d) Endoplasmic reticulum - Synthesis of lipids

Last Answer : (a) Mitochondria - Produce cellular energy in the form of ATP

Like New Pr Like New Products w oducts wants to i ants to improve its pack ve its packaging aft aging after readi er reading custo ng customer res mer responses t ponses to its customer its customer opinion poll. opinion poll. Which is not Which is not a function of a function of packaging? packaging? a. Its purpose is to c e is to contain and protect the product. b. It contains the brand mark. It contains the brand mark. c. It protects children. d. It determines product quality.

Description : Like New Pr Like New Products w oducts wants to i ants to improve its pack ve its packaging aft aging after readi er reading custo ng customer res mer responses t ponses to its customer its ... brand mark. It contains the brand mark. c. It protects children. d. It determines product quality.

Last Answer : d. It determines product quality.

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Last Answer : I usually clean or rinse it off. Keep in mind that the smell would get worse and if keeping it in a bin best to clean it first.

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Last Answer : answer:I've considered this question myself. My personal conclusion: It depends on how long it takes to decompose. Meaning the 1/8 of a French fry you fish out from that crevice between the seats is okay. A ... across it. If it doesn't impact anyone, it's fine. If it bothers someone, it's trash.

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