Give a brief answer for each of the following : (i) What is central d

1.	Give a brief answer for each of the following : (i) What is central dogma? (ii) Define cryopreservation. (iii) What is symbiosis? (iv) Explain the term perianth.
Answer» (i) The basic belief held by molecular geneticists that the flow of genetic information is unidirectional and occurs from DNA → RNA → Protein. (ii) Cryopreservation is a technique in which organisms, tissue and cells are preserved and stored at very low temperature of liquid nitrogen (-196°C) for years. They remain viable in frozen state for future use. (iii) Symbiosis is a beneficial association between members of different species in which both the partners are benefitted. (iv) Perianth is the term used when the calyx and corolla of the flower are indistinct.

Give a brief answer for each of the following : (i) What is central dogma? (ii) Define cryopreservation. (iii) What is symbiosis? (iv) Explain the term perianth.

Answer»

(i) The basic belief held by molecular geneticists that the flow of genetic information is unidirectional and occurs from DNA → RNA → Protein.

(ii) Cryopreservation is a technique in which organisms, tissue and cells are preserved and stored at very low temperature of liquid nitrogen (-196°C) for years. They remain viable in frozen state for future use.

(iii) Symbiosis is a beneficial association between members of different species in which both the partners are benefitted.

(iv) Perianth is the term used when the calyx and corolla of the flower are indistinct.

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