Trisomy 21, as illustrated by the karyotype, is caused by nondisjunction. This occurs when chromosomes do not separate properly during meiosis.
Answer is D) nondisjunction
Here one of the answer Red Cedar Tree
I like the word bats. It is cool. I also like the world "c o v i d 19" and "coronaviruses". I live getting colds cuz my mother treats me like her queen and puts a crown on my head. I am suffering from respiratory malfunction so please donate to my gofundme. Sars CoV 2 sucks. I spill over my shirt- NOOO! I go to the zoo for "zoo nosis" and then I sleep.
Caffeine works as an adenosine receptor antagonists, this essentially means that it works in the opposite manner or works against the receptor. Think of antagonist in the term of literature it goes against the agonist. Adenosine when bond to the receptor causes tiredness, this is the reason why people drink caffeine to stay wake and to prevent cognitive decline from exhaustion. So caffeine doesn’t really effect learning or memory to a large extent like other stimulants do. So basically caffeine increases wakefulness which in turn allows a person to focus longer, slight increase in memory, and more of a sorted out thought process.
