<h2>Mutation of p53 Gene</h2>
Mutation in the p53 protein leads to uncontrolled cell division of tumor cells leading to metastasis of tumor.
Explanation:
The p53 gene termed as the tumor protein or TP53 is the gene that encodes the regulatory protein which regulates cell cycle and cell death (apoptosis). Cell cycle and apoptosis are the important factors which prevent proliferation of cells with abnormal DNA. P53 acts as the tumor suppressor and prevents the spread of tumor or cancer. Mutation of p53 gene could be inherited or caused due to chemical, biological, or radiation mutagens. A mutant p53 actually inhibits the action of a natural p53 and thereby inhibits tumor suppression.
Answer:
Sponge; Radial Symmetry; Endoskeleton; Absent Appendages; Absent Segmentation
Cnidarians; Radial Symmetry; No Skeleton; Non-Jointed Appendages; Absent Segmentation
Roundworms; Radial Symmetry; No skeleton; Absent Appendages; Absent Segmentation
Annelids; Radial Symmetry; No skeleton; Absent Appendages; Present Segmentation
Mollusks; Bilateral Symmetry; Exoskeleton; Non-Jointed Appendages; Absent Segmentation
Arthropods; Bilateral Symmetry; Exoskeleton; Jointed Appendages; Present Segmentation
Echinoderms; Bilateral Symmetry; Endoskeleton; Non-Jointed Appendages; Absent Segmentation
Vertebrates; Bilateral Symmetry; Endoskeleton; Jointed Appendages; Absent Segmentation
Answer:
The pyloric sphincter valve
Explanation:
The pyloric sphincter is a thin, circular band of visceral muscle surrounding the pyloric opening at the inferior end of the stomach. It is found at the border of the stomach's final segment , the pylorus, and the small intestine's first segment, duodenum.
Answer:
Species are as specific as you can get. It is the lowest and most strict level of classification of living things. The main criterion for an organism to be placed in a particular species is the ability to breed with other organisms of that same species.
2c would be transcription because it is the first step in building proteins. and 3 would be translation because the information is being carried to mRNA