A is the answer because it multiplies itself by 3 each time
Mitochondria, plastids and chloroplast all are surrounded by a double membrane
Answer:
E) horizontal gene transfer
Explanation:
Horizontal gene transfer(HGT) is mainly seen in bacteria. Bacteria exchange their genetic material from the horizontal gene transfer method. There are three methods in HGT- conjugation, transduction, and transformation.
In conjugation, the bacteria exchange their plasmid through sex pilus. In transformation, bacteria take up other's genetic material from its environment and in transduction virus-mediated gene transfer occurs.
Therefore in bacteria and nucleus, the genetic material exchange can occur only through HGT.
Viral DNA can be inserted into the genome of bacteria by manipulating a specific enzyme known as DNA ligase.
<h3>What is DNA ligase?</h3>
This is a special enzyme found in humans and other forms of DNA. The role of the DNA ligase enzyme is to fuse together distinct strands of DNA. By manipulating this enzyme, scientists have achieved genetic modification.
Therefore, we can confirm that due to the successful manipulation of an enzyme known as DNA ligase, scientists have been able to insert viral DNA into the genome of bacteria.
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