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In transformation, genes from a donor chromosome are transferred as A. Single stranded dna B. Double...

In transformation, genes from a donor chromosome are transferred as
A. Single stranded dna
B. Double stranded rna
C. Double stranded dna
D. A plasmid
E. Single stranded rna
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Answer #1

Ans: A plasmid

Transformation is a process through which genetic make up of an organism is altered by the iinsertion of new gene into its genome . It is done by using vectors which are the DNA carriers.

Gene transformation is of two types : i) Natural ii) Artificial

Natural transformation consist of :

Conjugation:It is a genetic exchange by cellular contacts.

Transduction: It is a genetic exchange through a vector or plasmid.

Plasmid are small , circular double stranded DNA molecule which replicates independently from its chromosomal DNA.They are important because genes in plasmid provides bacteria with genetic advantage such as antiobiotic resistance.Scientists use plasmid as vehicle/ vector/ tool for clonning, transferring and manipulating genes.

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