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TLS Online TPP Program
#Question id: 12529
#Unit 6. System Physiology – Plant
During the mid- to late stages of seed development, specific mRNAs accumulate in embryos, These mRNAs encode so-called late-embryogenesis-abundant (LEA) proteins thought to be involved in desiccation tolerance. This mRNA accumulation in embryo at the time of high levels of which endogenous hormone?
TLS Online TPP Program
#Question id: 12530
#Unit 6. System Physiology – Plant
Some given hormones is also called a ubiquitous hormone?
a) Ethylene
b) Gibberellin
c) Abscisic acid
d) Brassinosteroids
TLS Online TPP Program
#Question id: 12531
#Unit 6. System Physiology – Plant
The most bioactive brassin in eudicots, which is a polyhydroxylated steroid similar to animal steroid hormones that brassin is
TLS Online TPP Program
#Question id: 12532
#Unit 6. System Physiology – Plant
In Arabidopsis some brassinosteroid mutants given below;
a) 3-week-old light-grown homozygous bri1 mutant shown a severe dwarf plant while heterozygous bri1 mutant exhibits wild-type morphology
b) 3-week-old light-grown homozygous cpd (constitutive photomorphogenisis and dwarfism) mutant exhibits a wild-type phenotype while heterozygous mutant shown a dwarf phenotype
c) The dark-grown det2 mutant has short, thick hypocotyls and expanded cotyledons while the dark-grown wild type has long, thin hypocotyl
d) The dark-grown det2 mutant has exhibits a wild-type phenotype
Which of the following given mutants of brassinosteroid is correct?
TLS Online TPP Program
#Question id: 12533
#Unit 10. Ecological Principles
If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starts from seaweeds to fish to seals to polar bears, then which of the following could be true?
TLS Online TPP Program
#Question id: 12534
#Unit 10. Ecological Principles
Which of the following statements is correct about biogeochemical cycling?