why not option b guys ( antibiotics are not slecetable markers ,but antibiotic genes are)
Answers
ABC Government High School,
C-Zone,
Bellary.
Dear Puja,
I am sorry for replying so late. I was too busy with the school elections that were held this week.
Every year the school elections are held towards the end of October. A council of ministers are selected for the school parliament. Since I am in the ninth standard so I too was eligible to file my nomination for a post. You know my flair for Sports so I opted for the Sports Minister. I had to do a lot of campaigning. I had to make posters and placards and visit every class convincing the students of my capability. My contender is also an excellent sportsperson.
The results are to be declared next week. I am biting my nails in the mean-time. I will let you know what happens.
Loads of love.
Your friend,
Pallavi.
Antibiotics medium are used to mark or select transformant and recombinant , so you could say antibiotics used as selectable markers with marker gene.
and
vectors carry an antibiotic resistant gene which helps to select the recombinant cells from non recombinant cells and ones as only recombinant cells would exhibit the antibiotic resistance. and will able to survive on antibiotic rich medium . such genes that the host cell requires for growth under certain conditions and has a differ the recombinant cells from non ones are call as selectable marker.
hence option a is correct....
hope it will help you..
:) and sorry dued