The correct answer is: John who has no genetic predisposition and goes dancing with his friends twice per week.
Alzheimer's disease is a neurodegenerative disease and the most common type of dementia. Patients suffering from this type of dementia exhibit problems with memory, cognition and behaviour. One of Alzheimer's risk factors is family history and genetic predisposition. Several genes have been found to increase the risk of developing Alzheimer's. Physical activity, such as regular dancing for example, stimulates the mind and can protect from dementia. Therefore, John is the least likely to develop Alzheimer's disease.
Its classified under cell regulation
<u>Ground tissue</u>, which is also known as cortex, is the main plant tissue shown in green in the image.
Sea breeze and land breeze.
When sea is cooler than land, the wind blows the cool air up to the land, which on a beach has no structures to stop it, thus, it's cold.
Opposite works for land breeze.
<u>The function of a protein determined by:</u>
The shape determines the working of a protein. A protein's design is determined by its primary structure i.e the amino acid sequence. The amino acid sequence within a protein is decided by the encoding arrangement of nucleotide in the gene (DNA).
The role of a protein is utterly dependent on its three-dimensional architecture (other than when it caters as food). This framework may be disturbed by a number of agents thereby denaturing the protein:
- Variations in the pH (between charged amino acids the electrostatic interactions is changed).
- difference in concentration of salt (does the same).
- temperature change (higher temperatures decrease the strength of hydrogen bonds).
- reduction agent presence (disruption of S-S bonds among cysteines).