Answer:
prokaryotic: A prokaryote is a single celled organism that does not have a nucleus or membrane bound organelled and its dna is in the cytoplasm. They also cant undergo mitosis because they dont have a nucleus. they are most likely to be unicellular
examples: archea and bacteria
eukaryotic:
A eukaryotic cell is an organism made up of cell that contain their dna in a nucleus. Eukaryotic cells contain membrane bound organelles as well as ribosomes.not all of them are the same though. mst of them are multicellular and go through mitosis
examples: fungi, plants, animals.
Because the way our solar system works it only happens either yearly or just depends on the situations
Answer:
Phosphate sugar backbone:
The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.
Nitrogenous base:
Nitrogen bases are the molecules that make up the steps of the ladders. There are four different nitrogen bases, namely; Guanine, Thymine,Adenine and Cytosine.
Pyrimidines are compounds that make a single 6-sided ring. Examples of pyrimidines are Cytosine and Thymine.
Purines on the other hand make 5-sided and 6-sided rings. Examples of purines are Guanine and Adenine.
The nitrogen bases are helped together through hydrogen bonds.
Hydrogen Bonds:
A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
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