Question

16) Which of the following organism is used to bring new genes to plants when you are creating GMOs? A. Vibrio cholerae B. adenovirus C. bacillus thuringiensis D. agrobacterium tumefaciens

17) When creating recombinant E. coli to express insulin, reverse transcriptase is necessary. Which of the following is the reason reverse transcriptase is used? A. It cuts the plasmid so the gene can be put in. B. It opens a pores in the E coli so the new plasmid can enter. C. It forces the E. coli to divide and express the new gene. D. It creates an intron-less gene which is essential since E. coli cannot handle introns.

18) Cancer is a result of A. overactive mitosis B. mutation C. viral infection D. All of the above are possible.

Answer 1

Ans16)d)agrobacterium tumefaciens.

Explaination:Agrobacterium tumefaciens is a type of Gram negative found in soil and it has genetic engineering ability naturally through  which it integrates its plasmid genes into plant genome and helpful in Creating genetically modified organism.

Ans-17) C) It forces the E. coli to divide and express the new gene.

Explaination: reverse transcriptase enzyme force EColi to form cDNA from mRNA and result ii division and new gene expression.

Ans-18)d)all of the above

Explaination: cancer is a disease which is caused by uncontrolled division of cells ie uncontrolled mitosis , by oncovirus (cancer causing virus) and by mutation in protooncogenes.