A 200-1itre stirred fermenter contains a batch culture of Bacillus subtilis bacteria at 28⁰C Air at 20⁰C is pumped into the vessel at a rate of 1 vvm; (vvm stands for volume of gas per volume of liquid per minute). The average pressure in the fermenter is 1 atm. The volumetric flow rate of off-gas from the fermenter is measured as 189 l min^-1. The exit gas stream is analysed for oxygen and is found to contain 20.1% 0₂. The dissolved-oxygen concentration in the broth is measured using an oxygen electrode as 52% air saturation. The solubility of oxygen in the fermentation broth at 28⁰C and 1 atm air pressure is 7.8 x 10^-3 kg m^-3. Determine the value of k_La for the system ____________

#Question id: 3537

#Section 3: Genetics, Cellular and Molecular Biology

What is the probability of two offspring in which one dominant phenotype and one recessive phenotype from the mating Aa × Aa?

#Question id: 3538

#Section 3: Genetics, Cellular and Molecular Biology

Monohybrid cross allowed between heterozygous Rr (Round) and RR (Round), all progeny having Round seeded plant were allowed to self-fertilize to produce numerous progeny that are 

#Question id: 3539

#Section 3: Genetics, Cellular and Molecular Biology

In cucumbers, orange fruit color (R) is dominant over cream fruit color (r). A cucumber plant homozygous for orange fruits is crossed with a plant homozygous for cream fruits. What are phenotype of progeny if backcross between the F1 and the orange parent.

#Question id: 3541

#Section 3: Genetics, Cellular and Molecular Biology

Blue follower is dominant over white flower and long pollen is dominant over short pollen. A plant with Blue flower and short pollen was cross with white flower and long pollen. All F1 offspring display blue flower and long pollen. What is the percent of F2 progeny showing blue flower and long pollen?

#Question id: 3542

#Section 3: Genetics, Cellular and Molecular Biology

All genes are not linked. The probability of a progeny being AaBBccDd from a corss between AABbccDd and aaBBccDD parents will be

#Question id: 3543

#Section 3: Genetics, Cellular and Molecular Biology

Mendel crossed round and tall pea plants (RRTT) with wrinkle and dwarf ones (rrtt). The F1 plants were all round tall. These F1 plants were cross with rrTt. Which of the following is correct among these offspring?