Answer:
Chromosomes are thread-like structures in organisms, found primarily in the nucleus of the cell. These chromosomes contain genetic information and are involved in cell replication and reproduction. Along with DNA, chromosomes contain histones, which are proteins that keep the chromosome bound together.
Cancer cells are cells that basically bypass any sort of regulatory processes in the cell cycle (and mitosis - the splitting of the cell). This leads to uncontrollable cell growth/duplication which hence leads to more and more cancerous cells. Cancer itself is so hard to cure for a couple of different reasons. If the cells are in the form of a benign tumor, that is a tumor that does not spread from its original infected tissue, it should be "easy" to remove with surgery. However, if it metastasizes, or spreads into surrounding tissues through the lymph or blood systems, then it becomes even harder to remove because of its far reach and complex structure. Also, cancer cells can be simply described as normal body cells that have gone rogue. That being said, things such as antibiotics, that are designed to get rid of foreign bodies, cannot get rid of cancerous cells without getting rid of most of your regular body cells as well simply because they cannot tell the difference.
Hope this helps :)
<u>Answer:</u>
<em>The biologists clarify these similarities as a homologous pair. This is based on the principle of convergent evolution.</em>
<u>Explanation:</u>
<em>Convergent evolution</em> is understood by the phenomenon of development of similar organs in different species in different period. Those<em> homologous pair </em>have same structure but can have different function in the different <em>species of organism. </em>
The bone of human arms, wings of the bat and dolphin flippers contain many of same bones which have developed from the same embryo tissue but the function for each is <em>different in different species.</em>
Answer:I believe B:The Phosphate Group
Explanation:
