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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: 1398

#SCPH05 I Biotechnology

Which of the following properties is (are) characteristic of a benign tumor?

a. well differentiated              b. localized to tissue of origin             c. metastatic               

d. promotes angiogenesis        e. surrounded by a fibrous capsule
TLS Online TPP Program

#Question id: 243

#SCPH12 I Genetics

Deoxythymidine is a ________ found mainly in DNA.
TLS Online TPP Program

#Question id: 377

#SCPH05 I Biotechnology

The aqueous solution with the highest pH is:
TLS Online TPP Program

#Question id: 2258

#SCPH01 Biochemistry

The arrangement of microtubules in eukaryotic flagella is referred to as
TLS Online TPP Program

#Question id: 2966

#SCPH01 Biochemistry

Scientists isolate cells in various phases of the cell cycle. They isolate a group of cells that have 1 1/2 times more DNA than G1 phase cells. What is the most likely part of the cell cycle from which these cells were isolated?