Female mice with the CD9 gene knocked out are infertile because

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#Question id: 9232

#SCPH06 I Botany

Establishing new nature reserves in biodiversity hot spots may not necessarily the best choice because ________.

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#Question id: 15268

#SCPH06 I Botany

During DNA isolation, phenol / chloroform extraction is performed to remove

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#Question id: 13058

#SCPH06 I Botany

Precision will be reduced, but yield will be increased

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

Which of the following true about real time PCR?

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#Question id: 22949

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

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?

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#Question id: 3053

#SCPH06 I Botany

Bacterial culture contains 1000/ mL in the exponential growth phase. If you consider a generation time of 20 minutes, the total number of organisms / mL 60 minute will be