The membranes of winter wheat are able to remain fluid when it is extremely cold by:

TLS Online TPP Program

#Question id: 5058

#SCPH06 I Botany

 In the formation of vertebrate eye, optic vesicle and head ectoderm are-

TLS Online TPP Program

#Question id: 14107

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

Direct submission to GenBank are made using 

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#Question id: 15649

#SCPH05 I Biotechnology

A bacterial culture having a specific oxygen uptake rate of 5 mmol O2 (g DCW)⁻¹ h⁻¹ is being grown aerobically in a fed-batch reactor. The maximum value of the volumetric oxygen transfer coefficient is 0.18 s⁻¹ for the stirred tank bioreactor and the critical dissolved oxygen concentration is 20% of the saturation concentration (8 mg L⁻¹). The maximum density to which the cells can be grown in the fed-batch process, without the growth being limited by oxygen transfer, is approximately

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#Question id: 3266

#SCPH06 I Botany

One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is

TLS Online TPP Program

#Question id: 8917

#SCPH05 I Biotechnology

The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos