Agriculture - Online Test
Q1. Electrons from excited chlorophyll molecules of photosystem II to photosystem I transferred and finally convert
Answer : Option A
Explaination / Solution:
After absorbing light,electrons are excited and transferred through PS II and PS I and finally to NAD forming NADH.
Q2. When chromosome sets are present in multiple of ‘n’ the condition is called
Answer : Option B
Explaination / Solution:
Most of the organisms are diploid, contain two set of chromosome (2n) but a number of organisms contains multiple of chromosome set like 3n,4n, 6n etc. This condition of having multiple sets chromosome is called Euploidy.
Q3. Fermentation is
Answer : Option C
Explaination / Solution:
Fermentation is the process of anaerobic respiration in which incomplete oxidation leads to formation of ethanol in absence of oxygen. Fermentation occurs in yeast.
Q4. In acropetal succession of an inflorescence, the position of youngest floral bud is at
Answer : Option B
Explaination / Solution:
In acropetal succession of an inflorescence, the youngest floral buds are found at distal end and the oldest flower are found at proximal end.
Q5. Anatomy of stem differ from root in
Answer : Option B
Explaination / Solution:
The stem shows the epidermis covered with a thin layer of cuticle, narrow cuticle and each vascular bundle is conjoint, open and is endarch protoxylem.
Q6. Which of the following gibberellic acid is used for malting process in brewing industry?
Answer : Option D
Explaination / Solution:
GA3 is used to speed up the malting process in brewing industry.
Q7. Which one of the following pairs is wrongly matched
Answer : Option D
Explaination / Solution:
Water hyacinth develops offset for vegetative propagation. Its forms large number of branches in very short interval of time to cover the whole water bodies and depriving other aquatic organisms from oxygen dissolved in water.
Q8. A cell dipped in 0.5 M sucrose has no effect. It is dipped in 0.5 M NaCl, the cell will
Answer : Option A
Explaination / Solution:
A cell dipped in 0.5 M sucrose has no effect due to osmosis as concentration of sucrose is more of equal to cytoplasm but 0.5 M NaCl cause exosmosis that leads to plasmolysis.
Q9. The major approach towards the crop improvement programme is
Answer : Option C
Explaination / Solution:
Crop improvement programme is carried out to obtain crops with desired traits that may be more yields, resistance to disease, higher nutrient value etc. Two plants having desired traits are hybridized to obtain combination of desired traits.
Q10. Non-symbiotic nitrogen fixing prokaryote is
Answer : Option C
Explaination / Solution:
Most of the prokaryotic nitrogen fixing prokaryotes are symbiotic in nature. Azatobacter is a bacteria which is non-symbiotic nitrogen fixing prokaryote.
