Ethanol is produced by anaerobic fermentation of glucose by Saccharomyces cerevisiae. For the particular strain of S. cerevisiae employed, the maintenance coefficient is 0.18 kg kg^{- 1} h^{- 1}, Yxs is 0.11 kg kg^-1, Y_PX is 3.9 kg kg^-1 and µ_max is 0.4 h^-1.  It is decided to investigate the possibility of using Zymomonas mobilis bacteria instead of yeast for making ethanol. Z. mobilis is known to produce ethanol under anaerobic conditions using a different metabolic pathway to that employed by yeast. Typical values of Yxs are lower than for yeast at about 0.06 kg kg^-1; on the other hand, the maintenance coefficient is higher at 2.2 kg kg ^-1 h ^-1. Ypx for Z. mobilis is 7.7 kg kg^-l; µ_max is 0.3 h- 1. Y’_PS is maximum and equal to the theoretical yield when there is zero growth and all substrate entering the cell is used for maintenance activities. If ethanol is the sole extracellular product of energy-yielding metabolism, calculate mp for yeast?

                               _____________________    

#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?

#Question id: 3519

#Section 3: Genetics, Cellular and Molecular Biology

If quadruple heterozygote of genotype Aa Bb Cc Dd is self-fertilized, what is the probability of a quadruple heterozygote Aa Bb Cc Dd offspring is assuming independent assortment of all four pairs of alleles.