Which of the following is NOT a feature of germinal center B-cells?

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#Question id: 18637

#SCPH01 Biochemistry

The number of rooted trees (NR) for n taxa is ______

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#Question id: 10522

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

Mechanical barriers provide a first line of defence against insect pests and pathogens, these mechanical barriers developed by plants;

COLUMN A	COLUMN B
A. Thorns	i) It can be found on the stem and petioles of roses and are formed by the epidermis
B. Spines	ii) Found on a lemon tree (Citrus sp.) are modified branches, as can be seen by their position in the axil of a leaf
C. Prickles	iii) Found on shoot and leaves of tomato (Solanum lycopersicum) are derived from epidermal cells
D. Trichomes	iv) which are characteristic of cacti (Opuntia spp.) in the New World, are modified leaves

Match correctly following combination of barrier developed by plants ;

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#Question id: 2097

#SCPH01 Biochemistry

Free and unesterified fatty acids bind to one of a number of chaperone proteins in order to be transported in the aqueous environment of the cytosol. Which of the following facilitates this intracellular transport?

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#Question id: 12941

#SCPH06 I Botany

Name the therapeutic protein which has been used to successfully treat certain types of breast cancer.

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#Question id: 762

#SCPH01 Biochemistry

Regarding the sugar residues in nucleic acids, which, if any, of the following statements is incorrect?