Practice Questions

TLS Online TPP Program

#Question id: 3347

Which one of the following statements is NOT TRUE about homologous organ?

#Unit 11. Evolution and Behavior

Homologous organ may be a result of convergent evolution
Homologous organ may be a result of divergent evolution
Homologous organ support adaptive radiation
Homologous organ may show structural similarity but functional diversity

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TLS Online TPP Program

#Question id: 10917

#Unit 6. System Physiology – Plant

Photosynthetic sugar molecules are transported via phloem to other parts of the plants. The following aspects are associated with sucrose unloading in phloem and its transport;

a) The presence of plasmodesmata is assumed to provide apoplastic transport. An absence of plasmodesmata between cells indicates an nonfunctional symplastic continuity

b) Phloem unloading and short-distance transport can occur via symplastic as well as apoplastic pathways

c) Both unloading and the short-distance pathway appear to be completely symplastic in some young eudicot leaves, such as sugar beet and tobacco

d) An apoplastic step is required in developing seeds because there are no symplastic connections between the maternal tissues and the tissues of the embryo

Which of the following combination is INCORRECT?

TLS Online TPP Program

#Question id: 12886

#General Aptitude

The length (in metres) of the longest rod that can be put in a room of dimensions 10 m × 10 m × 5 m is

TLS Online TPP Program

#Question id: 10432

#Unit 6. System Physiology – Plant

Phytochrome interacting factors (PIFs) act as negative regulators of photomorphogenesis such as;

a) Most PIFs are constitutive activators of genes that are expressed in the dark or in response to shade

b) Most PIFs are constitutive repressor of genes that are expressed in the dark or in response to shade

c) In the light, Pfr promotes the degradation of the PIFs, blocking the transcription of skotomorphogenesis genes