Answer:
Mutations. A mutation is a random change in DNA which therefore affects a gene and/or chromosome . ... If a mutation causes a new phenotype that makes an organisms better suited to a particular environment, it can lead to rapid change in the characteristics of the individuals in that species.
Answer:
The order of deoxyribonucleotide bases in a gene determines the amino acid sequence of a particular protein. Since certain amino acids can interact with other amino acids in the same protein, this primary structure ultimately determines the final shape and therefore the chemical and physical properties of the protein.
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First episode release date was <span>February 27, 2012</span>
Scientists will probably look at the birds' beaks, feathers, skeletal structure to see if they are closely related.
Ans.
Sickle cell anemia is defined as a genetically inherited disorder that causes deformation of red blood cells (RBCs) and inadequate oxygen transport. It is caused by a mutation in the gene that encodes for hemoglobin and leads to formation of a defective protein.
The RBCs transport oxygen to the various parts of body with the help of hemoglobin molecules. Due to defective hemoglobin, blood cells become sticky and rigid, and shape like sickles. The resulting sickle-shaped cells get stuck in blood capillaries that block or slow down blood flow or oxygen transport to the body organs.
Thus, 'sickle cell anemia affects oxygen transport in the body.'