Across
- 5. Each of the two DNA molecules now contains one old strand and one new strand.
- 7. The two chains of nucleotides are held together by ...
- 9. Adenine,cytosine,guanine and ...
- 10. Rna has ... but Dna doesnot.
- 11. All the genes in an individual or species are known as the ...
- 12. Mrna, Trna and ...
Down
- 1. a mononucleotide contains a phosphate group, an organic group and a ... sugar.
- 2. Part of protein synthesis, takes place in the nucleus.
- 3. Part of protein synthesis,takes place on the ribosomes.
- 4. Dna is one type of nucleic acid called ...
- 6. Mistakes in replication may cause ...
- 8. A ... is a sequence of bases on a DNA molecule coding for a sequence of amino acids in a polypeptide chain.