<span>DNA stands for deoxyribonucleic
acid. The deoxy- in the DNA is a short term for deoxyribose. The nucleic acid
molecule has three parts; sugar, phosphate and a base. The phosphate in the DNA
acts as a backbone of the molecule. It is also responsible for the DNA’s
‘double-helix’ structure. The base has four codes namely adenine, thymine,
cytosine and guanine. Adenine and thymine are bse pairs whereas cytosine and
guanine are base pairs. They are not to be interchanged. Resulting in one cause
mutation in the gene. </span>
Answer:
In sickle cell anemia, blood is also chronically low in oxygen. This lack of oxygen-rich blood can damage nerves and organs, including your kidneys, liver and spleen, and can be fatal. Blindness. Sickle cells can block tiny blood vessels that supply your eyes
Explanation:
Sickle cell disease can cause organ damage, stroke and even death.
Answer:
Genes & DNA
Explanation:
Heritable traits are known to be passed from one generation to the next via DNA, a molecule that encodes genetic information.Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes.
Answer:
The correct answer is option E. "nucleotides can only be added to an available 3'-OH group on the transcript terminus".
Explanation:
RNA synthesis is catalyzed by an enzyme called RNA polymerase. RNA polymerase always catalyze the synthesis of new RNA from 5' to 3' because nucleotides can only be added to an available 3'-OH group on the transcript terminus. This has been confirmed in labeling experiments with γ-32P substrates which establish the presence of a triphosphate moiety in transcripts with either pppG or pppA.
