Agriculture - Online Test
Q1. The stage for counting of chromosome is
Answer : Option D
Explaination / Solution:
During cell division, chromosomes get condensed in shape. In metaphase stage of mitosis, the chromosomes are located at center of cell in linear fashion. It can be easily studied at this stage.
Q2. Two molecules of pyruvate are completely degraded in Krebs cycle to form
Answer : Option A
Explaination / Solution:
In kreb cycle glucose has been broken down to release carbon dioxide and eight molecules of NADH2; two of FADH2 have been synthesised besides just two molecules of ATP.
Q3. The limbless amphibian is
Answer : Option C
Explaination / Solution:
Ichthyophis is an amphibian which is limbless. Sometimes called as Asian caecilians. They are found in southeast Asiaand the southern Philippines
Q4. In arborescent monocots stem, a secondary cambium grows in the following type of vascular bundle is seen in
Answer : Option B
Explaination / Solution:
It is the anatomy of monocotyledonous root.
Q5. Growth regulator ethylene is used for
Answer : Option C
Explaination / Solution:
Ethylene is highly effective in fruit ripening. It enhances the respiration rate during ripening of the fruits.
Q6. What is common between vegetative propagation and apomixes
Answer : Option B
Explaination / Solution:
Both vegetative propagation and apomixes are types of asexually reproduction involving not fusion of gametes. So, new progeny produced are identical to parents.
Q7. Transport over longer distances proceeds through the vascular system
Answer : Option B
Explaination / Solution:
Translocation is a biological process that occurs in all plants and involves the movement of water and other soluble nutrients through the xylem and phloem from one part of the plant to another.
Q8. A typical angiospemic embryo sac is though 8 nucleate is 7-celled. 8 nuclei includes
Answer : Option B
Explaination / Solution:
A typical angiospermic embryo sac contains 8 nuclei which includes 3 egg apparatus at micropylar end, 3 antipodal cells at chalazal ends and 2 polar nuclei at the centre of embryo sac.
Q9. Element required for germination of pollen grain is
Answer : Option B
Explaination / Solution:
Elements play important role in completing life cycles of plants. Element required for germination of pollen grain is Boron.
Q10. Which among the following belong to Sphenopsida?
Answer : Option A
Explaination / Solution:
Equisetum of Pteridophyta belong to class Sphenopsida.
