![]() RNA is constantly produced, used, degraded, and recycled.Ĭompared with DNA, RNA is relatively resistant to UV damage. Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. RNA is not stable under alkaline conditions, plus the large grooves in the molecule make it susceptible to enzyme attack. The O-H bond in the ribose of RNA makes the molecule more reactive, compared with DNA. ![]() The small grooves in the helix also serve as protection, providing minimal space for enzymes to attach. ![]() The C-H bonds in DNA make it fairly stable, plus the body destroys enzymes that would attack DNA. RNA is synthesized from DNA on an as-needed basis.ĪT (adenine-thymine) GC (guanine-cytosine)ĪU (adenine-uracil) GC (guanine-cytosine) Ribose sugar phosphate backbone adenine, guanine, cytosine, uracil bases Together, RNA, short for ribonucleic acid, and DNA, short for deoxyribonucleic acid, make up the nucleic acids, one of the three or four classes of major 'macromolecules' considered crucial for. You can consider the DNA similar to a program of a computer and the body. DNA is found in every cell of an organism and is copied from parent cells to child cells. DNA defines the purpose, structure, development, and function of an organism. RNA usually is a single-strand helix consisting of shorter chains of nucleotides.ĭeoxyribose sugar phosphate backbone adenine, guanine, cytosine, thymine bases DNA stands for deoxyribonucleic acid, which is a molecule that contains the code of an entire organism. DNA is a double-stranded molecule consisting of a long chain of nucleotides.Ī-form helix. RNA is used to transmit genetic information in some organisms and may have been the molecule used to store genetic blueprints in primitive organisms.ī-form double helix. Used to transfer the genetic code from the nucleus to the ribosomes to make proteins. DNA is a double helix molecule made of two antiparallel strands of nucleotides linked by hydrogen bonding between complementary base pairs. Long-term storage of genetic information transmission of genetic information to make other cells and new organisms.
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