Tag: biology
Questions Related to biology
Which one of the following is a copper fungicide?
The major effect of crown gall pathogen on its hosts is the ______________.
Which one of the following antagonists has been commercialized for the biological control of plants diseases?
Match List I with List II and select the correct answer.
| List-I | List-II |
|---|---|
| a. Ascobolus | $1$. Lignicolous |
| b. Erysiphe | $2$. Bunt disease |
| c. Polyporous | $3$. Ectoparasite |
| d. Tilletia | $4$. Coprophilous |
The staple crop in Ireland was completely destroyed in $1844-1846$, by a fungal disease resulting in a great famine. The causal organism in this case was _____________.
Consider the following organisms.
a. Viruses
b. Bacteria
c. Mycoplasmas
d. Fungi
The correct chronological sequence in which they were, recognized as incidents of plant diseases is?
Which one of the following pairs is NOT correctly matched?
Match List-I with List-II and select the correct answer.
| List-I(Common name) | List-II(Scientific name) |
|---|---|
| a. White rust | $1$. Puccinia graminis |
| b. Yellow rust | $2$. Puccinia triticina |
| c. Brown rust | $3$. Puccinia glumarum |
| d. Black rust | $4$. Albugo candica |
Crown gall symptoms are present in ______________.
Consider the following events.
a. Germ tube formation
b. Aspersoria formation
c. Penetration
d. Haustoria's formation.
The correct sequence in which these events take place during plant infection is?