At the time of mid-blastula transition which of the following event not occur?

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#Question id: 1658

#SCPH05 I Biotechnology

Which of the following statements is TRUE of IgE?

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#Question id: 3893

#SCPH05 I Biotechnology

Protein structural motifs often have general functions in common.  Which one of the following motifs is known to be involved in protein dimer formation, but not in direct protein-DNA interactions?

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#Question id: 15910

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

In HMM, transition probability is describes as 

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#Question id: 1663

#SCPH05 I Biotechnology

RAG-1 and RAG-2 enzymes mediate the recombination of:

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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 ;