What are proto-oncogenes? -Biology

What are proto-oncogenes? -Biology
by

1 Answer

Answer :

answer:
by

Related questions

Proto-oncogenes are: B A. DNA sequences in cells that are oncogenes themselves B. Cellular copies of genes that were first found in oncogenic retroviruses C. DNA viral sequences that are known to infect human cells D. Bacterial DNA counterparts

Description : Proto-oncogenes are: B A. DNA sequences in cells that are oncogenes themselves B. Cellular copies of genes that were first found in oncogenic retroviruses C. DNA viral sequences that are known to infect human cells D. Bacterial DNA counterparts

Last Answer : Cellular copies of genes that were first found in oncogenic retroviruses

Which of the following statements is not true for cancer cells in relation to mutations? (a) Mutations inactivate the cell control. (b) Mutations inhibit production of telomerase. (c) Mutations in proto-oncogenes accelerate the cell cycle. (d) Mutations destroy telomerase inhibitor.

Description : Which of the following statements is not true for cancer cells in relation to mutations? (a) Mutations inactivate the cell control. (b) Mutations inhibit production of telomerase. (c) Mutations in proto-oncogenes accelerate the cell cycle. (d) Mutations destroy telomerase inhibitor.

Last Answer : (b) Mutations inhibit production of telomerase

Proto-oncogenes: a. are only found in malignant tissues b. are retroviruses capable of causing tumouc. inactivates oncogenes d. regulates cell growth and differentiationr

Description : Proto-oncogenes: a. are only found in malignant tissues b. are retroviruses capable of causing tumour c. inactivates oncogenes d. regulates cell growth and differentiation

Last Answer : regulates cell growth and differentiation

What are oncogenes? -Biology

Description : What are oncogenes? -Biology

Last Answer : answer:

Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oncogenes

Description : Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oncogenes

Last Answer : Answer : C

The only correct statement about oncoviruses is (A) All the oncoviruses are RNA viruses (B) Reverse transcriptase is present in all oncoviruses (C) Viral oncogenes are identical to human protooncogens (D) Both DNA and RNA viruses can be oncoviruses

Description : The only correct statement about oncoviruses is (A) All the oncoviruses are RNA viruses (B) Reverse transcriptase is present in all oncoviruses (C) Viral oncogenes are identical to human protooncogens (D) Both DNA and RNA viruses can be oncoviruses

Last Answer : Answer : D

Hybridoma cells are (a) only cells having oncogenes (b) product of spore formation in bacteria (c) nervous cells of frog (d) hybrid cells resulting from myeloma cells.

Description : Hybridoma cells are (a) only cells having oncogenes (b) product of spore formation in bacteria (c) nervous cells of frog (d) hybrid cells resulting from myeloma cells.

Last Answer : (d) hybrid cells resulting from myeloma cells.

Mention any four features of the proto - industrial system. -SST 10th

Description : Mention any four features of the proto - industrial system. -SST 10th

Last Answer : (i) Impact on cottagers and peasants : After the disappearing of open field system cottagers and poor peasants who had earlier depended on common lands for their survival, gathering their firewood, ... goods were no: produced in factories by the cotta cottagers and Hie peasants and their families.

The proto-industrialisation helped in building a close relationship between the town and the countryside”. -SST 10th

Description : The proto-industrialisation helped in building a close relationship between the town and the countryside”. -SST 10th

Last Answer : (i) Merchants were based in towns but the work was done mostly in the countryside by the peasant households. (ii) A merchant clothier in England purchased wool from a wool stapler, and ... ) The finishing was done in London before the export merchant sold the cloth in the international market.

What is proto-industrialisation ? -SST 10th

Description : What is proto-industrialisation ? -SST 10th

Last Answer : Proto-industrialisation is the phase of industrialisation that was not based on the factory system. Before the coming of factories, there was large-scale industrial production for an international market. This part of industrial history is known as proto-industrialisation.

How was proto-industrialisation different from factory production ? -SST 10th

Description : How was proto-industrialisation different from factory production ? -SST 10th

Last Answer : Proto-industrialisation was a decentralised method of production which was controlled by merchants and the goods were produced by a vast number of producers located in different places whereas under ... became centralised. Most of the processes were brought together under one roof and management.

What is meant by proto-industrialisation ? How did it affect the rural peasants and artisans ? -SST 10th

Description : What is meant by proto-industrialisation ? How did it affect the rural peasants and artisans ? -SST 10th

Last Answer : It was the phase of industrialisation before the Industrial Revolution, where there was large- scale industrial production for an international market which was not factory based. Impact: (i) Full ... income from cultivation. It also allowed them a fuller use of their family labour resources.

What were the benefits enjoyed by the villagers in the proto- industrial system. -SST 10th

Description : What were the benefits enjoyed by the villagers in the proto- industrial system. -SST 10th

Last Answer : As common agricultural land was disappearing, the villagers and poor peasants, who had earlier depended on common lands for their survival, had to look for alternative sources of income. The ... their family labour resources, as all the members of the family could work for these merchants.

In what ways the proto-industrial production helped the poor farmers in countryside? -SST 10th

Description : In what ways the proto-industrial production helped the poor farmers in countryside? -SST 10th

Last Answer : Following are the ways from which the proto-industrial production helped the poor farmers in countryside: 1.In the countryside poor peasants and artisans began looking for merchants ... proto-industrialisation supplemented their shrinking income from cultivation and raised their standard of living.

How was cloth manufactured in England during the proto-industrial period? -SST 10th

Description : How was cloth manufactured in England during the proto-industrial period? -SST 10th

Last Answer : . Merchants were based in towns but the work was done mostly in the countryside. . A merchant clothier in England purchased wool from a wool stapler. . From there, it was carried to the ... The finishing was done in London before the export merchant sold the cloth in the international market.

Explain what is meant by proto-industrialization. -SST 10th

Description : Explain what is meant by proto-industrialization. -SST 10th

Last Answer : Even before factories began to be set up in England and Europe, there was large-scale industrial production for an international market. This period was referred to as proto - industrialization ... historians because this is the phase of industrialization that was not based on the factory system.

What is meant by proto-industrialisation ? -SST 10th

Description : What is meant by proto-industrialisation ? -SST 10th

Last Answer : Proto-industrialisation refers to first or early form of industrialisation. Even before the factories came up in England and Europe, there was large-scale industrial production for an international ... , regulated competition and prices and restricted the entry of new people into the trade.

Describe the nexus of merchants and cotton textile producers in proto-industry. -SST 10th

Description : Describe the nexus of merchants and cotton textile producers in proto-industry. -SST 10th

Last Answer : In the proto-industrial stage, cotton was produced in the following ways: (i) Merchant clothier bought wool from stapler, the person who sorted wool according to its fibres. (ii) ... town and countryside developed in which a network of commercial exchange existed between merchants and farmers.

Explain the main features of proto-industrialisation. -SST 10th

Description : Explain the main features of proto-industrialisation. -SST 10th

Last Answer : Proto-industrialisation refers to a phase of industrialisation which was not based on factories. Even before factories began to appear, there was large-scale industrial production for international ... workers were employed by each merchant, with each clothier thus controlling hundreds of workers.

What is meant by proto-industrialization? -SST 10th

Description : What is meant by proto-industrialization? -SST 10th

Last Answer : Proto-industrialization was the early phase of industrialization in Europe and England when there was large scale industrial production for an international market. This was not based on factories. It was ... commons due to enclosure movement. (ii) They now looked for alternative source of income.

What was ‘proto-industrialization’? -SST 10th

Description : What was ‘proto-industrialization’? -SST 10th

Last Answer : Proto-industrialization refers to the system of industries that existed in Europe before the arrival of modern machine run factories. Large scale industrial production took place for an international ... (iv) They got a source of income which supplemented their shrinking income from cultivation.

Enumerate the features of the proto-industrial system. -SST 10th

Description : Enumerate the features of the proto-industrial system. -SST 10th

Last Answer : (i) It was a decentralised system of production. (ii) Control on production was in the hands of merchants but goods were produced by a vast number of producers working in their ... working for their merchants, workers could remain in the countryside and continue to cultivate their small plots.

To which group do belong? (a) Negritoes (b) Proto-Australoids (c) Mongoloids (d) Western Brachycephals

Description : To which group do belong? (a) Negritoes (b) Proto-Australoids (c) Mongoloids (d) Western Brachycephals

Last Answer : Ans: (b)

Which one of the following racial groups is popularly known as the Aryans? (a) The Proto-Australoids (b) The Mediterraneans (c) The Brachycephals (d) The Nordics

Description : Which one of the following racial groups is popularly known as the Aryans? (a) The Proto-Australoids (b) The Mediterraneans (c) The Brachycephals (d) The Nordics

Last Answer : Ans: (d)

To which group do the tribals of central and southern India belong? (a) Proto-Australoids (b) Negritos (c) Mongoloids (d) Brachycephals

Description : To which group do the tribals of central and southern India belong? (a) Proto-Australoids (b) Negritos (c) Mongoloids (d) Brachycephals

Last Answer : Ans: (a)

RB 1 gene is (A) A tumour suppressor gene (B) Oncogene (C) Proto-oncogene (D) Activated proto-oncogene

Description : RB 1 gene is (A) A tumour suppressor gene (B) Oncogene (C) Proto-oncogene (D) Activated proto-oncogene

Last Answer : Answer : A

Retinoblastoma can result from a mutation in (A) ras proto-oncogene (B) erbB proto-oncogene (C) p 53 gene (D) RB 1 gene

Description : Retinoblastoma can result from a mutation in (A) ras proto-oncogene (B) erbB proto-oncogene (C) p 53 gene (D) RB 1 gene

Last Answer : Answer : D

P 53 gene: (A) A proto-oncogene (B) An oncogene (C) A tumour suppressor gene (D) None of these

Description : P 53 gene: (A) A proto-oncogene (B) An oncogene (C) A tumour suppressor gene (D) None of these

Last Answer : Answer : C

Ras proto-oncogene encodes (A) Epidermal growth factor (EGF) (B) Receptor for EGF (C) Signal transducer for EGF (D) Nuclear transcription factor

Description : Ras proto-oncogene encodes (A) Epidermal growth factor (EGF) (B) Receptor for EGF (C) Signal transducer for EGF (D) Nuclear transcription factor

Last Answer : Answer : C

Ras proto-oncogene is converted into oncogene by (A) A point mutation (B) Chromosomal translocation (C) Insertion of a viral promoter upstream of the gene (D) Gene amplification

Description : Ras proto-oncogene is converted into oncogene by (A) A point mutation (B) Chromosomal translocation (C) Insertion of a viral promoter upstream of the gene (D) Gene amplification

Last Answer : Answer : A

Proto-oncogens are present in (A) Oncoviruses (B) Cancer cells (C) Healthy human cells (D) Prokaryotes

Description : Proto-oncogens are present in (A) Oncoviruses (B) Cancer cells (C) Healthy human cells (D) Prokaryotes

Last Answer : Answer : C

Examine the given figure and select the correct option giving all the four parts (A, B, C and D) rightly identified. A B C D (a) Archego- Female Gemma Rhizoids niophore thallus cup (b) Archego- Female Bud Foot niophore thallus (c) Seta Sporo- Proto- Rhizoids phyte nema (d) Antherid- Male- Globule Roots iophore thallus

Description : Examine the given figure and select the correct option giving all the four parts (A, B, C and D) rightly identified. A B C D (a) Archego- Female Gemma Rhizoids niophore thallus cup ( ... thallus (c) Seta Sporo- Proto- Rhizoids phyte nema (d) Antherid- Male- Globule Roots iophore thallus

Last Answer : (a) Archego- Female Gemma Rhizoids niophore thallus cup