Some of the main causes are plant growth and ice wedging.
<span>The basic building blocks of a cell membrane are phospholipids. Phospholipids contain a hydrophobic (insoluble in water) end made up of two fatty acid chains of nonpolar molecules such as carbons and hydrogens. The other end is hydrophobic (soluble in water) and contains polar phosphate molecules. These phospholipids are arranged in a bilayer with their hydrophilic end group exposed to water on each side of the membrane and the hydrophobic nonpolar molecules protected inside the double layer. </span>
Sometimes the Earthquake can contaminate the drinking water of a lower developed city/town which leaves the residents with no reliable and clean water source.
Answer:
Deletion of a DNA base from a gene affects an organism by changing the sequence of amino acids in a protein.
Explanation:
A DNA fragment forms a gene, with a specific sequence of nitrogenous bases, which determines the synthesis of a specific protein. When a deletion of a base occurs in such a gene, it affects:
- Transcription of the mRNA, which will have the sequence of altered bases.
- During translation, the mRNA codons will encode at least one different amino acid.
- The structure of the synthesized protein, which will be altered by changes in its amino acid sequence.
In summary, the <u>deletion of a base in the DNA</u><u> will affect the </u><u>protein</u><u> to be synthesized by </u><u>changing the amino acid sequence</u><u> of its structure</u>.
The other options are not possible, because the deletion of a base in the DNA of a gene
<em> Does not influence the number of chromosomes that the gametes will have.
</em>
<em> It does not produce long chains in the chromosomes.
</em>
<em> It does not affect the ribose structure of the nucleic acids.</em>
Your answer would be A) The process by which organisms with the best traits for survival meet the challenges of life and reproduce
Explanation: Use the word NATURAL in NATURAL selection to help you! “Natural” comes from the word Nature. Which means it should have nothing to do with humans
