The 3 checkpoints include G1 where the cell growth is checked, G2 where the integrity of the DNA/chromosome is checked, and M where the integrity of the metaphase plate is checked.
<h3>Cell cycle checkpoints</h3>
There are 3 regulatory checkpoints in the life cycle of cells:
- G1: the size of the cell, the presence of growth factors, and the integrity of the DNA are checked before the cell irreversibly commits to division.
- G2: the integrity of the DNA and the correctness of the replication process at the S-phase are checked.
- M: correct attachment of the spindle fibers to the chromosomes at the metaphase plate is checked.
More on cell cycle checkpoints can be found here: brainly.com/question/2128300
Answer:
b. Detachment of a separate hybridized probe molecule from the template DNA
Explanation:
Molecular beacons are a type of genetic probe that enables the hybridization of oligonucleotides. These molecules have a flourishing component that binds to a nucleotide sequence and allows the identification of this nucleotide sequence in DNA or RNA without the release of radioactivity. For the use of these molecular beacons to be possible, one needs complementarity between the model DNA and the probe sequence, illumination of the hybridized beacon to detect fluorescence and proximity-based quenching of the fluorophore prior to beacon hybridization.
The plastic trash gets transported all through the planet with the help of ocean currents. The term Great Pacific Garbage Patch was first named by Captain Charles Moore. He found that huge intact substances like cups, bottles, boxes, bags, and fishing nets, and other millions of smaller pieces of plastic over an estimated region covering about 650000 to 16000000 square kilometers.
The garbage patches are witnessed in the oceans of the world wherever there is gyre. The gyres refer to the enormous circulating regions of water comprising the prime surface currents of the globe, mediated by the existing winds. The plastics would have got caught up in a gyre and would have been ended up in a region, known as the garbage patch.
The currents present in the gyre take in the floating substance from around the periphery and trap it in the center. The currents and waves dissociate the plastic components into smaller pieces, however, it never goes away, and gets transported to different regions with the help of currents.
The ocean currents mediate and transport useful things like organic nutrients, heat energy, and marine species from one location to another of the planet. However, at the same time, they can also transport other unnecessary floating things like plastic garbage.
The plastic, mainly the larger pieces that float on the surface are transported at a faster rate than the water present beneath it, this is because the wind that moves the current also moves the plastic. In this sense, the plastic is flowing freely all over the ocean surfaces of the globe.
The answer is A: phytoplankton provides nutrients to consumers in the ecosystem.
Hope this helps:)
A large proportion of our cells, muscles and tissue is made up of amino acids, meaning they carry out many important bodily functions, such as giving cells their structure.
