Ans.
HD (Huntington's disease) is a genetic neurological disorder that occurs due to damage and death of brain cells. it is caused by an autosomal dominant mutation in HTT (huntingtin) gene, having a trinucleotide repeat section that makes HTT protein.
The mutation leads to an increase in this nucleotide repeat count, associated with formation of altered or mutated huntingtin protein. These altered proteins show deleterious affect on brain cells and result in Huntington's disease.
Thus, the correct answer is 'option A). a mutated gene.'
Answer:
The options
A. Marsupial and placental mammals live in different habitats. Monkeys could only survive in the western islands and kangaroos in the eastern islands.
B. Monkeys and tree kangaroos compete against one another and cannot live together.
C. God specially created monkeys on one set of islands and kangaroos on the other.
D. The western islands were once connected to Asia and the eastern islands had been connected to Australia. The islands had never been connected to eachother.
The CORRECT ANSWER IS D.
D. The western islands were once connected to Asia and the eastern islands had been connected to Australia. The islands had never been connected to eachother.
Explanation:
Several forms of animals were restricted to several regions as a result of species that originated from pre-existing, nearby species. Since, the western islands were once all connected, they would possess or show the same species, which are also observed in the mainland in Asia. The eastern islands happened to be once all connected and had the same species, which is located in Australia
b. focusing on unconscious determinants of behavior
Explanation:
The psychoanalytic theory attempts to explain personality,motivation and mental disorders by focusing on unconscious determinants of behavior.
- It was founded by Sigmund Freud in the 19th century.
- He suggested that people can be cured of mental disorders by unlocking their unconscious experiences.
- He believed that the main cause of mental disorders is an unconscious awareness.
- He developed a therapy for this.
Learn more:
Physcological disorders brainly.com/question/10359891
#learnwithBrainly
Answer:
The tapetum basically acts as a retroeflector that reflects light right back along it's path.
Explanation:
There's nothing there. But if you need a different example Place drops of water onto a penny and it'll create a dome which is water sticking to water to create surface tension which holds it together