Answer:
1. The 2 bases forming each rung of the 'ladder' snap apart. This is caused by an enzyme that passes along the strands, 'unzipping' it
2. Spare nucleotides (in the nucleus of the cell) attach themselves to the 'broken rungs' to repair the break. Each repairing nucleotide is identical to the broken one
3. As each 'broken rung' is repaired, two 'ladders' form, that is 2 identical strands of DNA. The 'repairing' is really the process of replica
Explanation:
Hope this helps!
Yes. We could be done for if it is anthropogenic and if it is not being caused by CO2 as we are lead to believe. CO2 may not be the only anthropogenic cause (if it is a cause).
If climate change is due to weather engineering by chem trailing in conjunction with ionospheric heating, then it could cause serious illness to our species.
The use of the electro-magnetic spectum and radio waves by ionospheric heaters, could cause genetic damage as well as infertility. Whether other sources of RF/EMF also play into weather manipulation and control is unclear. Whether the use of ionospheric heaters contributes to climate change is unclear, but it intuitively seems likely. Creating a sustaining a plasma in the ionosphere may heat up more than the ionosphere and it may have an impact on the weather.
We do not know what chemicals are being used to obscure the sun, create clouds, perhaps create rain and wind, (nor why) and therefore we do not know if those could also contribute to infertility or genetic damage when they finally wash out of the sky. We do not know if the chemicals can be absorbed through the skin, or what happens to us when we breathe them, or consume them in our drinking water or in the food we eat. Higher levels of certain metals have been measured in the soil after chem trails. It is difficult to know which tests to use to test for all the chemicals which can be used.
Answer:
C
Explanation:
Because between the earth and sun is empty space (vacuum) transfer of heat from the sun to earth can only occur through radiation- because convection and conduction require a medium. The is the same process that warms your hands when you place them beside a fire. When you put your hands above the fire, they are warmed through convection.
A mutation that involves one or a few nucleotides is called
a) mutagen
b) inversion
c) point mutation
d) translocation
Answer:
c) point mutation
Explanation:
When only one or a few nucleotides of a gene are changed by mutation, this is called a point mutation. A point mutation can add one additional nucleotide to the wild type gene or may delete or substitute a nucleotide from it. For example, if a wild type gene sequence is "ATATATATA", then the addition of "C" at the position 4 will change it into "ATACTATATA". This addition of new nucleotide is called point mutation since only one nucleotide is added to the gene. Point mutations can cause serious genetic disorders such as sickle cell anemia.
I think the answer is d not quite sure tho
