Which of the following factors did not contribute to Mendel’s success in his study of heredity?

a.His use of the monoecious pea plant

b.His study of plant chromosome

c.His adoption of an experimental approach

d.His use of mathematics

e.The Plant use is easy to cultivate

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#Question id: 14504

#Unit 13. Methods in Biology

If the probability of a defective bolt is 0.1, the mean and standard deviation for the distribution of defective bolts in a total of 500 are

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#Question id: 13060

#Unit 13. Methods in Biology

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.

In blue white screening insertional activation of Beta-D-galactosidase will give rise to

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#Question id: 2400

#Unit 2. Cellular Organization

Yeast cells that have defective mitochondria incapable of respiration will be able to grow by catabolizing which of the following carbon sources for energy?

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#Question id: 16784

#Unit 13. Methods in Biology

Median of 5,7,6,1,8,10,12,4 and 3 is 

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#Question id: 4216

#Unit 3. Fundamental Processes

Which of the following processes is the first event to take place in translation in eukaryotes?