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Dvinal [7]
3 years ago
9

Which is best illustrated by Watson and Crick's ball-and-stick model of DNA?

Biology
1 answer:
Rasek [7]3 years ago
3 0
I think you forgot to give the options along with the question. I am answering the question based on my research and knowledge. "The role of creativity in scientific discovery" best <span>illustrated by Watson and Crick's ball-and-stick model of DNA. I hope that this is the answer that has actually come to your help.</span>
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Which of the following is a growing threat to animals
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Poaching by hunters are a growing threat to animals.

Poaching has been defined as the illegal hunting or capturing of wild animals, usually associated with land use rights.

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3 years ago
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The main difference between a prokaryotes and <br> eukaryotes
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eukaryote cells have a membrane -bound nucleus and prokaryote cells do not. the nucleus is where eukaryote ls store their genetic information and prokaryotes have no membrane bound organelles.

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A segment of a DNA molecule has the base sequence ATGAAC. Write a shorthand structure for this segment and for its complementary
Zanzabum

Answer: See attached picture.

Explanation:

DNA or deoxyribonucleic acid is the name for the molecule that contains the genetic information in all living things. This molecule consists of two strands that wind around each other to form a double helix structure.

The basic unit of nucleic acids are called nucleotides, which are organic molecules formed by the covalent bonding of a nucleoside (a pentose which is a type of sugar and a nitrogenous base) and a phosphate group. So each nucleotide is made up of a pentose sugar called deoxyribose, a nitrogenous base which can be adenine (A), thymine (T), cytosine (C) or guanine (G) and a phosphate group.

<u>What distinguishes one polynucleotide from another is the nitrogenous base</u>, and thus the sequence of DNA is specified by naming only the sequence of its bases. The sequential arrangement of these four bases along the chain is what encodes the genetic information, following the following criterion of complementarity: A-T and G-C. So the sequence of these bases along the chain is what encodes the instructions for forming proteins and RNA molecules. In living organisms, DNA occurs as a double strand of nucleotides, in which the two strands are linked together by connections called hydrogen bridges.

The chemical convention of naming the carbon atoms in the pentose nucleotide pentose numerically confers the names 5' end and 3' end ("five prime end" and "three prime end" respectively). The 5'-end designates the end of a DNA strand that coincides with the phosphate group of the fifth carbon of the respective terminal deoxyribose. A phosphate group attached to the 5'-end allows the ligation of two nucleotides; for example, the covalent bonding of the 5'-phosphate group to the 3'-hydroxyl group of another nucleotide, to form a phosphodiester bond.

3 0
2 years ago
Explain how health care professionals treat unregulated (or abnormal) cellular growth in the body
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New cells are typically produced during cell division. Cell division is a complex process that is regulated and checked at many points. Due to varying factors, the cell regulation mechanism may become non functional and this usually result in abnormal cell growth and division.

An abnormal cell growth may be cancerous or non cancerous. The best thing to do when one notices an abnormal growth in his body is to go and see the doctor. The doctors will administer appropriate test in order to determine the type of tumor that is present. If the tumor is non cancerous it will be removed by minor surgery. In case the tumor is cancerous, appropriate treatments will depending on the part of the body where it is found, the stage of growth and nature of the cancerous cells.

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3 years ago
Describe the role of proteins, lipids, and carbohydrates in the structure of the phospholipid bilayer. Include how
Ne4ueva [31]

Answer:

Carbohydrates covalently linked to proteins (glycoproteins) or lipids (glycolipids) are also a part of cell membranes, and function as adhesion and address loci for cells. The Fluid Mosaic Model describes membranes as a fluid lipid bilayer with floating proteins and carbohydrates.

Explanation:

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