Practice Questions

TLS Online TPP Program

#Question id: 8908

According to one hypothesis, the jaws of vertebrates were derived by the modification of

#XL - T Zoology

scales of the lower lip.
skeletal rods that had supported pharyngeal (gill) slits.
one or more gill slits.
one or more of the bones of the cranium.

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TLS Online TPP Program

#Question id: 35149

#XL - R Botany

In angiosperms, mature male gametophyte may consist of:

TLS Online TPP Program

#Question id: 35150

#XL - R Botany

In Polygonum-type embryo sac formation:

TLS Online TPP Program

#Question id: 35151

#XL - R Botany

In a mature Polygonum-type embryo sac:

TLS Online TPP Program

#Question id: 35152

#XL - R Botany

Which of the following embryo sac types are monosporic?

TLS Online TPP Program

#Question id: 35153

#XL - R Botany

Exine and intine of pollen:

TLS Online TPP Program

#Question id: 35154

#XL - R Botany

Factors affecting pollen viability include: