1. ASSERTION : In a terrestrial ecosystem, detritus food chain is the major conduit for energy flow. REASON : Solar energy is the direct source for energy supply in a detritus food chain.
Correct!
Wrong!
2. ASSERTION : The rate of decomposition of detritus is reduced in the regions of high latitude or altitude. REASON : It happens due to nutrient immobilisation.
Correct!
Wrong!
3. ASSERTION : Saccharomyces cerevisiae produces acetic acid. REASON : Trichoderma polysporum produces blood cholestrol lowering agent.
Correct!
Wrong!
4. ASSERTION : IgM is a type of immunoglobulin which cannot cross the placenta. REASON : IgM is pentamer immunoglobulin, joined by J-chain.
Correct!
Wrong!
5. ASSERTION : Miller used four gases - methane, ammonia, hydrogen and water vapour for the formation of simple organic compounds. REASON : Miller prepared some amino acids in his apparatus.
Correct!
Wrong!
6. ASSERTION : No lac mRNA is made in the presence of glucose. REASON : In the presence of glucose and lactose, activity of lac operon is not needed.
Correct!
Wrong!
7. ASSERTION : Haemophilia is a sex-linked recessive disease in which heterozygous female transmits the disease to 50% of her male progeny. REASON : Haemophilia is due to presence of recessive sex linked gene present on Y chromosome.
Correct!
Wrong!
8. ASSERTION : Corpus luteum is produced by Graafian follicle after ovulation. REASON : Corpus luteum secretes estrogen which is necessary to maintain pregnancy.
Correct!
Wrong!
9. ASSERTION : The leaves in gymnosperms are well-adapted to withstand extremes of temperature, humidity and wind. REASON : Unlike bryophytes and pteridophytes, in gymnosperms the male and female gametophytes do not have an independent free-living existence.
Correct!
Wrong!
10. ASSERTION : Lateral line system is found in fishes and aquatic larval amphibians. REASON : Lateral line system has receptors which are the clusters of sensory cells derived from ectoderm.
Correct!
Wrong!
