According to the Cholodny–Went model of phototropism, the tips of grass coleoptiles have specialized functions such as

a) Production of auxin

b) Perception of a unilateral light stimulus

c) Lateral transport of IAA in response to the phototropic stimulus

Which of the following given above functions is correct?

TLS Online TPP Program

#Question id: 9585

#Unit 6. System Physiology – Plant

In light reaction the reaction centre of PSII  receives electron from water molecules by splitting into oxygen, If 5 oxygen molecules evolved per 50 quanta was

absorbed then what is the quantum yield?

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#Question id: 24160

#General Aptitude

The Fourth Amendment to the Constitution protects citizens against unreasonable searches and seizures. No search of a person’s home or personal effects may be conducted without a written search warrant issued on probable cause. This means that a neutral judge must approve the factual basis justifying a search before it can be conducted.

This paragraph best supports the statement that the police cannot search a person’s home or private papers unless they have

TLS Online TPP Program

#Question id: 5360

#Unit 8. Inheritance Biology

Following some different genetic disorder traces in families. 

Family	Father	Mother	Son	Daughter
A	Affected	Affected	Unaffected	Unaffected
B	Affected	Affected	Unaffected	Affected
C	Unaffected	Unaffected	Undetermined	Affected
D	Affected	Unaffected	Unaffected	Affected

 Which of the following possible mode of inheritance in the Family A, B, C and D respectively

TLS Online TPP Program

#Question id: 15190

#Unit 8. Inheritance Biology

The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?

TLS Online TPP Program

#Question id: 544

#Unit 1. Molecules and their Interaction Relevant to Biology

One of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency, when the enzyme may lack zinc, it would be referred to as the: