Mike John, Content Explorer, MCA, Los Angeles, California, USA
Answered Jul 26, 2018
Transduction occurs when foreign DNA is introduced into an organism, for instance, the viral transfer of DNA from one bacterium to another. A virus transfers genetic material from the host organism creates a hybrid genome before placing the genetic material or DNA into the recipient organism.
However, transduction is not all bad. It is an indispensable genetic tool in many microbial systems, the transfer of genetic information from a donor to a recipient cell via a virus particle. Transduction can be used in different contexts to mean transfer of one material to another, such as when children are learning their transductive reasoning means taking the specific case to the general.
After the age of forty, it is usual for close-up vision to be blurred and for this to become worse over time. Presbyopia can occur and does occur in all states of previous vision.
That is, you are likely to become presbyopic after your thirties whether you are long-sighted, short-sighted, have a stigmatism, wear contact lenses or glasses. Presbyopia means the inability to focus up close because of a problem in refraction of the eye, and is often referred to as an age-related condition.