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TLS Online TPP Program

#Question id: 10809

Sieve element sap is rich in sugars and other organic molecules, These molecules represent an energy investment for the plant. How their loss be prevented when sieve elements are damaged?

#SCPH05 I Biotechnology
  1. Short-term sealing mechanisms not involve sap proteins
  2. long-term mechanism for preventing sap loss entails closing sieve plate pores with callose   
  3. For preventing sap loss using smooth endoplasmic reticulum (SER) which covers the sieve areas  
  4. long-term mechanism for preventing sap loss opening of the sieve tube in angiosperm
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TLS Online TPP Program

#Question id: 11527

#SCPH06 I Botany

Coleoptiles are very sensitive to light, if illuminated on one side with a short pulse of dim blue light, it will
TLS Online TPP Program

#Question id: 789

#SCPH05 I Biotechnology

Presence of large numbers of modified specially methylated nucleotides in tRNA contribute in
TLS Online TPP Program

#Question id: 8923

#SCPH05 I Biotechnology

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?
TLS Online TPP Program

#Question id: 8912

#I Life Science/ Life Sciences Group – I-V

Both animals and fungi are heterotrophic. What distinguishes animal heterotrophy from fungal heterotrophy is that only animals derive their nutrition
TLS Online TPP Program

#Question id: 4935

#SCPH28 | Zoology

Which gas was least abundant in Earthʹs early atmosphere, prior to 2 billion years ago?