there are many ways of explaining the characteristics of mineral
1. mineral are natural
2.mineral are inorganic
3. minerals are solid
4. definite chemical composition
5. crystalline structure
Embryologically, the space for the development of right lobe is made earlier by the closure of <span>pleuroperitoneal and pleuropericardial membranes, thereby creating more space for the development of right lobe. Molecular stimulation factors are also involved in the process. </span>
<span>Other mutagens act by chemically modifying the bases of DNA. For example, nitrous acid (HNO2) reacts with bases that contain amino groups. Adenine is oxidatively deaminated to hypoxanthine, cytosine to uracil, and guanine to xanthine. ... Uracil pairs with adenine rather than with guanine.</span><span>
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