genetic biology 1) In the future, life is found on moons of Jupiter and Saturn:
ID: 148523 • Letter: G
Question
genetic biology
1) In the future, life is found on moons of Jupiter and Saturn: Enceladus, Callisto, and Ganymede. Curiously, although the genetic material of these alien life forms is similar to DNA it uses different nucleotides with some unusual properties, as described below. There is an RNA equivalent as well in both places. Assume replication proceeds in a similar fashion to that on Earth (including unidirectional polymerases, unless stated otherwise) (7 points total) (i) Enceladus. The genetic material is single-stranded (ii) Callisto. Here the genetic material is double stranded but a different type of nucleotide is used and the polarity of both strands is 5' to 3' (iii) Ganymede. Here the genetic material is more like that on earth with antiparallel nucleotide chains. However, polymerases have evolved that can work both 3 to 5' as well as 5' to 3Explanation / Answer
1.Ganymede scenario is not fiction it may be possible .
May be possible to work in 3'-5'direction .
2. DNA polymerase 1 A
DNA polymerase 3. B
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