Man you need to change this to a different catagory
If a cell’s nucleus has 55% adenine bases it also has 55% thymine bases, so the percentage of cytosine bases is 45% as same as guanine bases.
This is known as Chargaff's rule which states that DNA should have a 1:1 ratio of pyrimidine and purine bases (the amount of guanine should be equal to cytosine and the same thing with adenine and thymine).
DNA molecule globally has percentage base pair equality: %A = %T and %G = %C.
Answer: radiation i think
Answer: c. Air pollution
Explanation:
There was a heatwave in Europe during the early years of the 21st century that killed tens of thousands across the continent and thousands in France.
Air pollution was blamed for having made the situation worse because the pollutants in the air acted to prevent heat from escaping back into the atmosphere which led to increased heat on ground and therefore a heat wave.
Sporophyte embryo.
Seed coat are one of the three parts of the seed of plants. The endosperm, embryo and seed coat. The number one function of seed coat is for protection against the environment. A seed need protection from water, heat,. This can all affect the chance of being a mature animal. This can also provide insuation during sub freezing temperatures. It also protects the endosperm which is the primary source of food of the developing embryo.
