Question

select all that apply
which three of the following indicate a type of \strain\?

allovar
biovar
morphovar
serovar
genovar

Explanation:

These three are established subcategories (strains) of microbial taxa:

1. Biovar: A strain differing in biochemical/physiological traits.
2. Morphovar: A strain differing in morphological features.
3. Serovar: A strain differing in antigenic properties.

Allovar and Genovar are not standard strain classification terms in this context.

Answer:

• Biovar
• Morphovar
• Serovar