Question

1. This vitamin essential in carbohydrate metabolism and amino acid biosynthesis may be added to media to enhance growth.

2. What organism is agar derived from? What is agarose derived from?

3. What type of plant tissue would produce haploid cultures?

4. What is cryopreservation and how can it be utilized?

Answer 1

1. Thymine or vitamin B1

2. Agar is derived from red algae of the genera Geladium and Gracilaria. Agarose is also derived from red algae, Geladium and Gracilaria. Agarose is one of the component of agar.

3. Pollen culture or anther culture would produce haploid cultures.

4. Cryopreservation is the process by which cellular components which are susceptible to damage by unregulated enzymatic or chemical activity can be preserved by cooling to very low temperatures. Cryppreservation is used for the preservation of stem cells, semen and eggs, embryo, plant seeds.