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TLS Online TPP Program
#Question id: 12938
#Unit 13. Methods in Biology
What is the main advantage of using Yeast Artificial Chromosome based vector over other vectors?
1. It has ability to clone very large fragments of DNA.
2. YAC vectors do not contain origin of replication sites
3. It has insert range up to 2000 kb.
4. It help in genome mapping and sequencing projects.
TLS Online TPP Program
#Question id: 13201
#Unit 6. System Physiology – Plant
Phloem loading in the apoplastic pathway thought to mediate the transport of sucrose from the apoplast into the sieve element– companion cell complex. Which of the following are involved in such sucrose transporting by apoplast?
a) Sucrose is at a higher concentration in the sieve element–companion cell complex indicates that sucrose is actively transported against its chemical-potential gradient
b) Sugars transport from the apoplast into the sieve elements and companion cells energy driven process
c) Phloem loading in the apoplastic pathway involves a sucrose–H+ symporter
d) the route of phloem loading is−mesophyll cells→ bundle sheath cells→ phloem parenchyma cell→ ordinary companion cell→ sieve elements
Which of the following is incorrect?
TLS Online TPP Program
#Question id: 33227
#Unit 1. Molecules and their Interaction Relevant to Biology
An uncatalyzed keto– enol tautomerization reaction occurs quite slowly as a result of the high free energy of its carbanion-like transition state called as
TLS Online TPP Program
#Question id: 7501
#General Aptitude
A train 150 m long is running with a speed of 68 kmph. In what time will it pass a man who Is running at 8 kmph in the same direction in which the train is going?
TLS Online TPP Program
#Question id: 4423
#Unit 1. Molecules and their Interaction Relevant to Biology
Each repeat unit within the nuclear ribosomal gene cluster of eukaryotes (rDNA) contains