Ecology Class 12 MCQ
Multiple Choice Questions Answer Sheet
Ecology Class 12 MCQ Read More »
The following questions consist of two statements, one labelled as Assertion (A) and the other labelled the Reason ®. Examine these two statements carefully and select the most appropriate answer codes.A. Assertion and reason both are correct and reason is the correct explanation of Assertion.B. Assertion and reason both are correct and reason is not
Evolution Assertion Reason Based Questions Read More »
The following questions consist of two statements, one labelled as Assertion (A) and the other labelled the Reason ®. Examine these two statements carefully and select the most appropriate answer codes.a) Assertion and reason both are correct and reason is the correct explanation of Assertion.b) Assertion and reason both are correct and reason is not
Molecular Basis of Inheritance Assertion Reason Based Questions Read More »
The following questions consist of two statements, one labelled as Assertion (A) and the other labelled the Reason ®. Examine these two statements carefully and select the most appropriate answer codes. (a)Assertion and reason both are correct and reason is the correct explanation of Assertion.(b)Assertion and reason both are correct and reason is not the
Principles of Inheritance and Variation Assertion Reason Based Questions Read More »
The following questions consist of two statements, one labelled as Assertion (A) and the other labelled the Reason ®. Examine these two statements carefully and select the most appropriate answer codes.A. Assertion and reason both are correct and reason is the correct explanation of Assertion.B. Assertion and reason both are correct and reason is not
Human Health and diseases Assertion Reason Based Questions Read More »
Watson and Crick had prepared a scheme for replication of DNA when they proposed the double helical structure of DNA. The scheme suggested that the two strands would separate and each act as a template for synthesis of new complementary strand. After complete replication each DNA molecule would have one parental and one newly synthesized
Replication of DNA Read More »
Palaeontology: The study of fossils is known as Palaeontology. Father of palaeontology is Leonardo da Vinci. Fossils found in the rock support organic evolution. Rocks are formed by sedimentation and a cross section of earth crust indicates the arrangement of sediments of different ages of different life forms which probably died during the formation of
Evidences For Evolution Read More »
Many scientists worked and gave their results in search of DNA is a genetic material. The final proof for DNA as the genetic material came from the experiment of Alfred Hershey and Martha Chase (1952), who worked with bacteriophage. Bacteriophage are the viruses that infect bacteria and they have a protein coat and DNA. Experiment:
Hershey & Chase Experiment Read More »