Answer:
The six codons for arginine are the following:
GCA, GCG, GCT, GCC, TCT, TCC
A) Considering the individual bases in each codon, three mutations are possible at each base position. Hence, 3 × 3 × 6 = 54 mutations are possible.
B) Considering the mutations at the 3rd base: 3 × 4 + 1 × 2 = 14 of these mutations are silent mutations.
C) Lysine codons are the following:
TTT, TTC
There are two possible mutations that can give a lys codon.
Hope that answers the question, have a great day!
The total volume of the gas-exchanging region in the lung is called alveolar volume.
The alveolus is an air sack-like organ in the end of the respiratory airway. The alveolus is the site where gas-exchanging happens, so only air inside alveolus that will undergo actual exchange. Air in bronchus or trachea wouldn't do exchange
A sperm and egg combine to make a zygote. (or fertilized egg)
So, the answer would be "A".
I hope this helps!
~cupcake
Answer:
c. Cr. N. IV = trochlear nerve
Explanation:
The IV cranial nerve is the trochlear nerve. It is located on the dorsal side of the brain near the back. It is a motor nerve and the smallest nerve which serves eye. This nerve present in the superior oblique muscle of the eye. The superior oblique muscle controls the rotational movement of the eyeball and prevent the eyeball from rolling upward into the eye socket.
Answer:
Brain cells are very sensitive to a lack of oxygen. Some brain cells start dying less than 5 minutes after their oxygen supply disappears. As a result, brain hypoxia can rapidly cause severe brain damage or death.
Explanation:
Other symptoms can include: hallucinations and delusions; increased agitation and confusion; depression and other mood disorders; personality changes, such as irritability and a reduced threshold for frustration; and an inability to focus or concentrate.
