Answer:
In the semi-conservative method of DNA replication, each of the strands of the double helix acts as a template for replication.
Explanation:
Semi-conservative DNA Replication:
- Semi-conservative DNA replication produces two daughter helices from the original parent helix. One strand of the daughter helix is form the original template while the other is newly synthesized.
- This means that one strand will have the base sequence identical to the parent, while the other will be complementary to the template.
- This model was experimentally confirmed by an experiment conducted in 1958 by Meselson and Stahl. They used radioactive isotope of nitrogen i.e. N-14 or N-15. DNA molecules made with N-15 were allowed to replicate in the presence of N-14.
- After first replication, DNA molecules contained both N-15 and N-14 isotopes, disproving the conservative model that stated that the new helices are completely identical to the template.
- The second replication yielded only N-14 which disproved the dispersive model that the new helices are a combination of both the template and new strands.
Use sterile gauze and wipe away from the site of injury
Dominant allele is represented by a capital letter and recessive allele is represented by a lower case letter
Sugar , Starch , glycogen, glycerol
Answer:
Option c. It explains a set of persistent and interconnected data points and relationships.
Explanation:
In science, a theory can be defined as a tested, proven and unifying explanation of the phenomena which is factually supported and has data in support of it gathered over a period of time.
The facts and data are repeatedly tested before a theory is given and it explains many phenomena and some yet to experimented phenomena and their explanations are provided by the established theories.
Therefore, it is a set of persistent and interconnected data points and relationships.