DNA a double-helix like structure, containing multiple nucleotide sequences consisting of a phosphate group, a sugar group, a nitrogenous base, and a hydrogen bond between two nucleotides. The hydrogen bond is weak so the double-helix can "unzip" and make RNA. I hope this helps!
<h3><u>Answer;</u></h3>
a nebular cloud of dust and gas
All of the celestial bodies of the solar system were said to have formed <u>from a nebular cloud of dust and gas.</u>
<h3><u>Explanation</u>;</h3>
- The solar system is composed of the sun and all the planets and other bodies that travel around it. A planet is a celestial body that orbits the sun.
- <em><u>According to solar nebula theory, a solar nebula is where the sun and planets were formed from. Solar nebula is a rotating cloud of gas and dust.</u></em>
- The sun is composed of about 99 percent of all the matter that was contained in the solar nebula. During formation of the solar system, the sun was forming in the center of the solar nebula, while planets were forming in the outer regions.
<span>The correct answer is that cholesterol is
steroidal alcohol.</span>
Cholesterol is an important organic molecule biosynthesized by all animal cells because it is an essential structural component of cell membranes. Its function in the membrane is to maintain membrane structural integrity and fluidity and to change cell’s shape rapidly. Cholesterol is a precursor for the biosynthesis of steroid hormones and vitamin D and bile acid.
Just Interbreed!
<span>(with reference to an animal) breed or cause to breed with another of a different race or species.</span>
I have three: glucose, fructose, galactose