In a experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time t then what will be size of population at time t+1?

#Question id: 1121

#SCPH28 | Zoology

Which of the following provides the best evidence that cell-signaling pathways evolved early in the history of life?

#Question id: 7296

#I Life Science/ Life Sciences Group – I-V

some of the following statements regarding to this experiment are given below. Which of the following statements is incorrect?

#Question id: 14296

#SCPH05 I Biotechnology

A two-stage chemostat system is used for production of secondary metabolite. The volume of each reactor is 0.5 m³; the flow rate of feed is 50 l h^{- 1}. Mycelial growth occurs in the first reactor; the second reactor is used for product synthesis. The concentration of substrate in the feed is 10 gl^-1. Kinetic and yield parameters for the organism are:

Assume that product synthesis is negligible in the first reactor and growth is negligible in the second reactor. Determine cell concentrations entering the second reactor.

#Question id: 3879

#SCPH06 I Botany

Which of the following is not usually essential for the catalytic activity of ribozymes?

#Question id: 5239

#SCPH06 I Botany

Which of the following statements is not true for Hfr strains of E. coli ?