Palaeontologista uarthed a human skull during excavation. A small fragment of the scalp tissue was still attached to it. Only little DNA could be extracted from it. It the genes of the ancient man need to be analysed, the best way of sufficient amount DNA from this extract is
Palaeontologista uarthed a human skull during excavation. A small fragment of the scalp tissue was still attached to it. Only little DNA could be extracted from it. It the genes of the ancient man need to be analysed, the best way of sufficient amount DNA from this extract is
A
Hybridising the DNA with a DNA probe
B
Subjecting the DNA to polymerase chain reaction
C
Subjecting the DNA to gel electrophoresis
D
Treating the DNA with restriction endonucleases
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The correct Answer is:
b
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Palaeontologists unearthed a human skull during excavation. A small fragment of the scalp tissue was still attached to it . Only little DNA could be extracted from it . It the genes of the ancient man need to be analysed the best way of getting sufficient amount of DNA from this extract is :
Go though the following statements (i) Meselson & stahl used cesium chloride density gradient to distinguish heavy DNA molecules from the normal DNA molecules. (ii) In meselson & Stahl experiment the DNA that was extracted from the culture one generation after the transfer from .^(15)N to .^(14)N , was composed of equal amount of hybrid (intermediate) DNA and of light DNA. (iii) In prokaryotes, control f the rate of transcriptional initiation is the predominant site for control of gene expression. (iv) In lac operon, the repressor is synthesised only at the time when the level of metabolite is in excess. Find out the correct statements?
Mankind's experience of various evolutionary changes from primitive times to the present day has been extensive and varied. However, man's problems were never before as complicated as they seem to be today, Man's economic activity centres primarily around production, Labour is said to be the primary factor of production, its role, therefore, has been given a lot of importance. It should be useful to have an overall view of the economic history of man-from the nomadic times to the modern factory system and study its relevance to the various labour problems of today. Initially, man passed through the hunting and fishing stage'. During this period, his basic needs were adequately met by Nature. Wild animals, birds and fruits satisfied his hunger, and his thirst was quenched by the waters of springs and rivers, Caves gave him shelter and barks of trees were used as clothing. During this stage of man's progress, labour problems did not exist because of the absence of any economic, political and social systems. Then came the pastoral stage', which was marked by a certain amount of economic activity. The nomadic and migratory nature of man persisted, and, together with his goats and cattle, he moved on to fresh pastures and meadows. Some conflicts would sometimes take place among herd-owners, for, during this period, the institution of nominal private property ownership was not known. This stage paves the way for the agricultural stage', during which the class system began to develop. There was a small artisan class mostly self-employed, and there were also landed proprietors or Zamindars as well as slaves. Thus, arose the feudal system. During the fourth stage of these developments, the handicrafts stage', a number of social and economic changes took place which marked the beginning of the labour problem in the world. The self-sufficient economy of the village underwent a drastic change. The community of traders and merchants emerged. Humanity's evolution from primitive stage to the present has been
Mankind's experience of various evolutionary changes from primitive times to the present day has been extensive and varied. However, man's problems were never before as complicated as they seem to be today, Man's economic activity centres primarily around production, Labour is said to be the primary factor of production, its role, therefore, has been given a lot of importance. It should be useful to have an overall view of the economic history of man-from the nomadic times to the modern factory system and study its relevance to the various labour problems of today. Initially, man passed through the hunting and fishing stage'. During this period, his basic needs were adequately met by Nature. Wild animals, birds and fruits satisfied his hunger, and his thirst was quenched by the waters of springs and rivers, Caves gave him shelter and barks of trees were used as clothing. During this stage of man's progress, labour problems did not exist because of the absence of any economic, political and social systems. Then came the pastoral stage', which was marked by a certain amount of economic activity. The nomadic and migratory nature of man persisted, and, together with his goats and cattle, he moved on to fresh pastures and meadows. Some conflicts would sometimes take place among herd-owners, for, during this period, the institution of nominal private property ownership was not known. This stage paves the way for the agricultural stage', during which the class system began to develop. There was a small artisan class mostly self-employed, and there were also landed proprietors or Zamindars as well as slaves. Thus, arose the feudal system. During the fourth stage of these developments, the handicrafts stage', a number of social and economic changes took place which marked the beginning of the labour problem in the world. The self-sufficient economy of the village underwent a drastic change. The community of traders and merchants emerged. The pastoral stage was marked by a certain amount of economic activity." How?
Mankind's experience of various evolutionary changes from primitive times to the present day has been extensive and varied. However, man's problems were never before as complicated as they seem to be today, Man's economic activity centres primarily around production, Labour is said to be the primary factor of production, its role, therefore, has been given a lot of importance. It should be useful to have an overall view of the economic history of man-from the nomadic times to the modern factory system and study its relevance to the various labour problems of today. Initially, man passed through the hunting and fishing stage'. During this period, his basic needs were adequately met by Nature. Wild animals, birds and fruits satisfied his hunger, and his thirst was quenched by the waters of springs and rivers, Caves gave him shelter and barks of trees were used as clothing. During this stage of man's progress, labour problems did not exist because of the absence of any economic, political and social systems. Then came the pastoral stage', which was marked by a certain amount of economic activity. The nomadic and migratory nature of man persisted, and, together with his goats and cattle, he moved on to fresh pastures and meadows. Some conflicts would sometimes take place among herd-owners, for, during this period, the institution of nominal private property ownership was not known. This stage paves the way for the agricultural stage', during which the class system began to develop. There was a small artisan class mostly self-employed, and there were also landed proprietors or Zamindars as well as slaves. Thus, arose the feudal system. During the fourth stage of these developments, the handicrafts stage', a number of social and economic changes took place which marked the beginning of the labour problem in the world. The self-sufficient economy of the village underwent a drastic change. The community of traders and merchants emerged. ."man's problems were never before as complicated as they seem to be today" means
Mankind's experience of various evolutionary changes from primitive times to the present day has been extensive and varied. However, man's problems were never before as complicated as they seem to be today, Man's economic activity centres primarily around production, Labour is said to be the primary factor of production, its role, therefore, has been given a lot of importance. It should be useful to have an overall view of the economic history of man-from the nomadic times to the modern factory system and study its relevance to the various labour problems of today. Initially, man passed through the hunting and fishing stage'. During this period, his basic needs were adequately met by Nature. Wild animals, birds and fruits satisfied his hunger, and his thirst was quenched by the waters of springs and rivers, Caves gave him shelter and barks of trees were used as clothing. During this stage of man's progress, labour problems did not exist because of the absence of any economic, political and social systems. Then came the pastoral stage', which was marked by a certain amount of economic activity. The nomadic and migratory nature of man persisted, and, together with his goats and cattle, he moved on to fresh pastures and meadows. Some conflicts would sometimes take place among herd-owners, for, during this period, the institution of nominal private property ownership was not known. This stage paves the way for the agricultural stage', during which the class system began to develop. There was a small artisan class mostly self-employed, and there were also landed proprietors or Zamindars as well as slaves. Thus, arose the feudal system. During the fourth stage of these developments, the handicrafts stage', a number of social and economic changes took place which marked the beginning of the labour problem in the world. The self-sufficient economy of the village underwent a drastic change. The community of traders and merchants emerged. Why does the author say that labour problems did not exist during the hunting and fishing stage?
Mankind's experience of various evolutionary changes from primitive times to the present day has been extensive and varied. However, man's problems were never before as complicated as they seem to be today, Man's economic activity centres primarily around production, Labour is said to be the primary factor of production, its role, therefore, has been given a lot of importance. It should be useful to have an overall view of the economic history of man-from the nomadic times to the modern factory system and study its relevance to the various labour problems of today. Initially, man passed through the hunting and fishing stage'. During this period, his basic needs were adequately met by Nature. Wild animals, birds and fruits satisfied his hunger, and his thirst was quenched by the waters of springs and rivers, Caves gave him shelter and barks of trees were used as clothing. During this stage of man's progress, labour problems did not exist because of the absence of any economic, political and social systems. Then came the pastoral stage', which was marked by a certain amount of economic activity. The nomadic and migratory nature of man persisted, and, together with his goats and cattle, he moved on to fresh pastures and meadows. Some conflicts would sometimes take place among herd-owners, for, during this period, the institution of nominal private property ownership was not known. This stage paves the way for the agricultural stage', during which the class system began to develop. There was a small artisan class mostly self-employed, and there were also landed proprietors or Zamindars as well as slaves. Thus, arose the feudal system. During the fourth stage of these developments, the handicrafts stage', a number of social and economic changes took place which marked the beginning of the labour problem in the world. The self-sufficient economy of the village underwent a drastic change. The community of traders and merchants emerged. Which word in the passage means 'surfaced'?
ERRORLESS -MOLECULAR BASIS OF INHERITANCE-Molecular Basis Of Inheritance
- Match the following
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- Gel electrophoresis is used for
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- Palaeontologista uarthed a human skull during excavation. A small frag...
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- A sequential expression of a set of human genes occurs when a steroid ...
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- In the nomenclauter of enzyme restriction endonuclease the Roman numer...
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- What is "A" and "B" in given diagram
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- Which RNA is having least age
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- Which of the following RNAs should be most abundant in animal cell
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- Which of the character is not applicable to t-RNA
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- Which one of the following pairs is correctly matched
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- Centre of DNA Fingerprinting and Diagnostics (CDED) is located at
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- Which of the following is a sulphur containing amino acid
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- The source of Taq polymerase used in PCR is a :
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- The deflection of pitch angle between two successive steps (rungs) of ...
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- Match the following in column I with column II and choose the correct ...
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- Triplet for inhibitting process of translation is
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- E.Coli cells with a mutated z gene of the lac operon cannot grow in me...
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