Practice Questions

TLS Online TPP Program

#Question id: 7307

Which of the following statements regarding flowering plants is correct?

#SCPH06 I Botany

The gametophyte is the dominant generation.
Female gametophytes develop from megaspores within the anthers.
Pollination is the delivery of pollen to the stigma of a carpel.
The food-storing endosperm is derived from the cell that contains one polar nucleus and two sperm nuclei.

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TLS Online TPP Program

#Question id: 22949

#SCPH01 Biochemistry

How CONSTANS gene and its encoded protein involved in translating day length into a signal that converts a vegetative shoot meristem into a floral meristem?

TLS Online TPP Program

#Question id: 10524

#I Life Science/ Life Sciences Group – I-V

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids, these alkaloids shows;

a) Alkaloids are derived from the tryptophan as constitutively produced defensive secondary metabolites

b) These benzoxazinoids such as DIBOA and its derivative DIMBOA are usually stored in the peroxisome

c) Upon damage, the inactive glycosides are hydrolyzed, generating glucosinolate, which are toxic not only to insect herbivores but also against pathogens

d) DIBOA and DIMBOA perform insecticidal and pesticidal activities

e) It can be inactivated by hydroxylation and N-glycosylation reactions

Which of the following combination is correct about benzoxazinoids alkaloids?

TLS Online TPP Program

#Question id: 3862

#SCPH05 I Biotechnology

The largest gene characterized to date is:

TLS Online TPP Program

#Question id: 19337

#SCPH28 | Zoology

Which one of the following is a type of cancer biomarker?

1. Prostate-specific antigen