Answer:
Around 4.1 billion years ago, the first single celled life form appeared on Earth
If an A (Adenine) were swapped for a T (Thymine) it will lead to A TRANSVERSION TYPE OF POINT MUTATION.
Replacement of an A with a T is a transversion type of point mutation because in transversion the purine is replaced with a pyrimidine. Since in this case only one nucleotide is replaced, it is a point mutation.
Answer:
Tyrosine derived neurotransmitters
Explanation:
These neurotransmitters are produced as a result of the conversion of tyrosine when not incorporated into proteins or energy production is converted to catecholamines.
These catecholamines includes dopamine, norepinephrine, and epinephrine.
All these three catecholamines produce various effects in numerous locations in the body acting either as a neurotransmitter or as a hormone
The Challenger Deep is in the southern end of the Mariana Trench. It is estimated to be 305meters deep.
