For a microbial culture, if the doubling time is 0.231 h, the specific growth rate (in h^{-1} ) will be (assume that the endogenous metabolism is…
For a microbial culture, if the doubling time is 0.231 h, the specific growth rate (in) will be(assume that the endogenous metabolism is negligible)
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Correct Answer: Option C
Explanation
Cybrids (cytoplasmic hybrids) are produced by fusing a cytoplast (an enucleated cell — a cell from which the nucleus has been physically removed by cytochalasin B + centrifugation) with an intact whole cell that retains its nucleus. The resulting cybrid contains: the nuclear genome of the whole cell donor + cytoplasm/organelles (mitochondria, plastids/chloroplasts) from the cytoplast donor. This technique is used to: (1) study organelle genetics and cytoplasmic inheritance; (2) create plants with novel cytoplasmic male sterility (CMS) for hybrid seed production; (3) introduce foreign mitochondria for disease modelling. Cybrids are distinct from somatic hybrids (fusion of two complete cells, combining both nuclear genomes).