Cell Cultivations
The protoplast can be used to

study plant viral infections
create plant hybrid
modify genetic information
all of these

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Cell Cultivations
Which of the following is the necessary step for cultivating the microorganisms?

Sterilizing in order to eliminate all living microorganisms in vessel
All of these
Preparing a culture medium for the growth of microorganisms
Inoculating the microorganisms in the prepared medium

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Cell Cultivations
Balanced growth is defined as

balancing the growth while controlling the pH
cultures undergoing balanced growth while maintaining a constant chemical composition
balancing the growth while controlling the temperature
balancing the growth while changing the nutrient composition

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Cell Cultivations
The archaebacterium Halobacterium, an extreme halophile, and Sulfolobus, a thermoacidophile, can be cultured in the presence of antibiotics such as streptomycin and chloramphenicol because

they lack murein in their cell wall
they contain ether-linked isoprenoids in their plasma membrane
All of these
they contain 80S, as opposed to 70S, ribosomes

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