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 is a codominant marker?

#Question id: 3513

#Section 3: Genetics, Cellular and Molecular Biology

RR- red, Rr- pink, rr- white flower color in plant. Pink flower plant allowed to repeated self fertilization up 3 generation. The proportional of pink flower is 

#Question id: 3514

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following are not conclude of that monohybrid cross?

#Question id: 3515

#Section 3: Genetics, Cellular and Molecular Biology

What proportional of F2 round seeded plant would produce all round plant after self fertilization?

#Question id: 3516

#Section 3: Genetics, Cellular and Molecular Biology

Cross allowed between pure line tall plant with pure line dwarf plant , all F1 having tall phenotype were allowed to self to produced  200 plant The number of F2 plant having pure line tall phenotype?

#Question id: 3517

#Section 3: Genetics, Cellular and Molecular Biology

The following two genotypes are crossed: AaBbCcddX AabbCcDd. What will number of different genotypes among the progeny of this cross?

#Question id: 3518

#Section 3: Genetics, Cellular and Molecular Biology

Assume that the trihybrid cross AA BB rr X aa bb RR is made in a plant species in which A and B are dominant but there is incomplete dominance between R and r. Consider the F2 progeny from this cross, and assume independent assortment. The phenotypes appear in this F2 progeny?