Presentación sin título

Multiple Choice

What is the significance of plant tissue culture techniques in modern agriculture and scientific research?

• They are used only for decorative purposes.

• They help in the rapid propagation of plants and studying physiological processes.

• They are mainly used for animal cell studies.

• They are not relevant in current agricultural practices.

Open Ended

Describe some of the main objectives for selecting explants in plant tissue culture and explain how these objectives influence the choice of explant.

Multiple Choice

Which of the following factors is most important for reducing contamination rates when cultivating plant explants in vitro?

• Using explants from field-grown plants

• Cultivating donor plants in greenhouse conditions

• Employing explants with large size

• Using explants from older tissues

Open Ended

Explain the role of asepsis in the success of plant tissue culture and describe two main sources of contamination.

Multiple Select

Which of the following are recommended practices for minimizing contamination in plant tissue culture?

• Using untreated water for washing explants

• Employing sterilized instruments and containers

• Working in a sterile air transfer chamber

• Using explants from contaminated cultures

Open Ended

Describe the essential components of a plant tissue culture medium and explain their functions.

Multiple Choice

Which of the following basic media contains the highest concentration of saccharose according to the table?

• MS

• N6

• B5

• None of the above

Multiple Choice

Which of the following components can be added to the culture media to prevent tissue browning caused by polyphenol oxidation?

• L-cysteine

• Auxins

• Agar

• Sucrose

Multiple Choice

Which nutrient is most commonly supplied in relatively high concentrations in plant tissue culture media?

• Nitrogen

• Phosphorus

• Calcium

• Magnesium

Open Ended

Explain the importance of acclimatization for plants regenerated in vitro and describe the main challenges faced during this stage.

Multiple Choice

What is the function of the sensor labeled as number 6 in the acclimatization chamber diagram?

• Controls relative humidity

• Measures temperature

• Regulates light intensity

• Monitors CO2 levels

Open Ended

What are some of the main factors to consider when choosing an explant for establishing plant tissue cultures in vitro?