Answer:
The role of cholesterol in the cell membrane is to maintain stability, anchor other molecules, and keep the membrane fluid in cold temperatures.
Explanation:
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Answer:
Evolution of cyanobacteria
Explanation:
Early earth was reducing therefore there was no oxygen on early earth. Oxygen first came on the earth due to the evolution of cyanobacteria on earth. Cyanobacteria were the first aerobic bacteria on earth.
This bacteria was able to conduct photosynthesis and split water into Hydrogen and oxygen. This oxygen is released in the atmosphere and created the aerobic environment on the earth.
Cyanobacteria used sunlight energy to split water and by this, they are able to make their own food in the form of carbohydrates. Therefore the correct answer is cyanobacteria.
The initial cell division of meiosis , known as meiosis I, divides the chromosomes into two cells. After this division, each cell receives a ploidy number of 2N.
<h3>What is the meiotic ploidy?</h3>
After meiosis II, there is no decrease in ploidy since both parent and daughter cells only have one copy of each meiosis. Each cell after mitosis has a chromatid for every homologous chromosome. Thus, each cell has enough DNA to make two copies of each chromosome.
Reductional division also occurs during the first meiotic stage, when a diploid parent cell divides into haploid daughter cells, resulting in a shift in ploidy. Meiosis II does not include a change in ploidy because it is an equational division.
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A restriction enzyme<span> is an </span>enzyme<span> that cuts DNA after recognizing a specific sequence of DNA. You can think of </span>restriction enzymes<span> as molecular scissors. Scientists can use </span>restriction enzymes<span> to cut a single gene from a larger piece of DNA. </span>Restriction enzymes<span> evolved in bacteria. (please thank me and give me brainliest:))</span>