Penicillin is produced by P. chrysogenum in a fed-batch culture with the intermittent addition of glucose solution to the culture medium. The initial culture volume at quasi-steady state is V₀ = 500 l, and glucose-containing nutrient solution is added with a flow rate of F = 50 l/h. Glucose concentration in the feed solution and initial cell concentration are S₀ = 300 g/l and X₀ = 20 g/l, respectively. The kinetic and yield coefficients of the organism are mm = 0.2 h^-1 , K_S = 0.5 g/l, and Y_X/S = 0.3 g dw/g glucose. Determine the culture volume at t = 10 h

#Question id: 4820

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following gametes are produced in grater proportional by an individual of genotype Ab/aB if the genes are in the same chromosome with some recombination between them?

#Question id: 4821

#Section 3: Genetics, Cellular and Molecular Biology

What are frequency of recombination  if one cell carry out cross over every 50 cell undergoes meiosis ?

#Question id: 4822

#Section 3: Genetics, Cellular and Molecular Biology

In a particular species of mammal black hair (B) is dominant to green hair (b) and red eyes (R) are dominant to white eyes (r). If a BbRr individual is mated with a bbrrindividual the expected phenotypic ratio of the offspring is 1 black-red : 1 black-white: 1 green-red : 1 green-white. However, when you mate these individuals you find that the phenotypic ratio of the offspring is 6 black-red :1 black-white : 1 green-red : 6 green-white. What could account for this difference?

#Question id: 4823

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following DNA markers can be used to distinguish between a homozygote and heterozygote ?

#Question id: 4823

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which one of the following DNA markers can be used to distinguish between a homozygote and heterozygote ?

#Question id: 4824

#Section 3: Genetics, Cellular and Molecular Biology

If plant with genotype AaBb is test cross where A and B are link at 10 map unit  in trance configuration then the probability of getting AaBB and AaBb genotype respectively?