The two DNA strands are called polynucleotides since they are composed of simpler monomer units called nucleotides. Each nucleotide is composed of one of four nitrogen-containing nucleobases (cytosine (C), guanine (G), adenine (A) or thymine (T)), a sugar called deoxyribose, and a phosphate group. The nucleotides are joined to one another in a chain by covalent bonds between the sugar of one nucleotide and the phosphate of the next, resulting in an alternating sugar-phosphate backbone. The nitrogenous bases of the two separate polynucleotide strands are bound together, according to base pairing rules (A with T and C with G), with hydrogen bonds to make double-stranded DNA.

Can we conclude that the four chemical bases that make up dna are adenine thymine guanine and cystosine?

OPTIONS:
- no
- yes
yes
De två DNA-strängarna kallas polynukleotider eftersom de består av enklare monomerenheter som kallas nukleotider. Varje nukleotid består av en av fyra kväveinnehållande nukleobaser (cytosin (C), guanin (G), adenin (A) eller tymin (T)), ett socker som kallas deoxiribos, och en fosfatgrupp. Nukleotiderna förenas med varandra i en kedja genom kovalenta bindningar mellan sockret i en nukleotid och fosfatet i nästa, vilket resulterar i en omväxlande socker-fosfat ryggrad. De kvävehaltiga baserna i de två separata polynukleotidsträngarna binds samman, enligt basparningsregler (A med T och C med G), med vätebindningar för att göra dubbelsträngat DNA. Kan vi dra slutsatsen att de fyra kemiska baser som utgör dna är adenin tymin guanin och cystosin? ALTERNATIV: - nej - ja
The two DNA strands are called polynucleotides because they consist of simpler monomer units called nucleotides. Each nucleotide consists of one of four nitrogen-containing nucleobases (cytosine (C), guanine (G), adenine (A) or thymine (T), a sugar called deoxiribose, and a phosphate group. The nucleotides are joined together in a chain by covalent bonds between the sugar of a nucleotide and the phosphate of the next, resulting in a alternating sugar-phosphate spine. The nitrogen-containing bases in the two separate polynucleotide strands are bonded together, according to base pairing rules (A with T and C with G), with hydrogen bonds to make double-stranded DNA. Can we conclude that the four chemical bases that make up DNA are adenine thymine guanine and cystosin? ALTERNATIVE: - no - yes
ja
yes