Fragmentation

Given below are the different steps in recombinant DNA technology. Arrange them according to the sequence of occurrence . a. Transferring the recombinant DNA into the host b. Extraction of the product c. Fragmentation of DNA by restriction endonucleases d. Ligation of DNA fragment into a vector e. Isolation of DNA f. Culturing the host cells in a medium at large scale . g. Isolation of a desired DNA fragment .

The fragmentation of a forest and deforestation lead to the disappearance of species and drastic climatic variation. a. Give some adverse effects of indiscriminate cutting down of forests. b. Suggest some measures to check deforestation.

Body breaks up into several fragments and each fragment starts to live as a new individual . This is __________ type of reproduction.

_____ is a windows utility program that locates and eliminates unnecessary fragments and rearranges files and unused to disk space to optimise operations.

Select the correct biological term. Lymphocytes, red cells, leucocytes, plasma, erythrocytes, white cells, haemoglobin, phagocyte, platelets, blood clot. Fragment of cells which are made in the bone marrow

Assertion: The restriction enzymes are called as molecular scissors. Reason : They cleave the DNA molecules into fragment at specific recognition sites. (a) Both Assertion and Reason are true. But Reason is the correct explanation of Assertion. (b) Both Assertion and Reason are true. ButReason is not correct explanation of Assertion. (c) Assertion is true. (d) Both Assertion and Reason are false.

Okazaki fragments are joined in a correct sequence by