-
vivek1110
- Master | Next Rank: 500 Posts
- Posts: 126
- Joined: Sat Sep 26, 2009 5:41 pm
- Location: Chennai
- Thanked: 4 times
- Followed by:2 members
- GMAT Score:660
Antigenic shift refers to the combination of two different strains of influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza.
A influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza
B influenza, different than the natural mutation of a single strain, known as antigenic drift
C influenza, in contrast to the natural mutation of a single strain, known as antigenic drift
D influenza, different than antigenic drift, which refers to the natural mutation of a single strain of influenza
E influenza; in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza
[spoiler]Can someone please explain why E is wrong?
OA A[/spoiler]
A influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza
B influenza, different than the natural mutation of a single strain, known as antigenic drift
C influenza, in contrast to the natural mutation of a single strain, known as antigenic drift
D influenza, different than antigenic drift, which refers to the natural mutation of a single strain of influenza
E influenza; in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza
[spoiler]Can someone please explain why E is wrong?
OA A[/spoiler]
Is caught between a rock and a hard place!
