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  • Which one of the following is not a phenotype of dark-grown seedlings that are etiolated?   Option: 1 Short hypocotyls<

Which one of the following is not a phenotype of dark-grown seedlings that are etiolated? 

 

Option: 1

Short hypocotyls


Option: 2

An apical hook


Option: 3

Closed cotyledons


Option: 4

Non-photosynthetic proplastids


Answers (1)

best_answer

Etiolated seedlings, which have been grown in the absence of light, exhibit several characteristic phenotypes. However, short hypocotyls are not one of them. In fact, etiolated seedlings typically have elongated and elongated hypocotyls. The other common phenotypes of etiolated seedlings include:

Pale or yellowish coloration due to reduced chlorophyll production

Closed or unexpanded cotyledons

Elongated and spindly stems

Apical hook development to protect the shoot apical meristem during emergence from the soil

Therefore, the correct statement should be: "Short hypocotyls" is not a phenotype of dark-grown seedlings that are etiolated. Hence, the correct answer is option 1. 

Posted by

Gaurav

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