3 years ago

8. A narrow region between two air masses of different densities is a A. ridge. B. system. C. gulley. D. front.

1 answer:

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<span>The answer is d. front. A front is the narrow region between two air masses of different densities. The interaction of the air masses cause the mass that is less dense to rise. Once air rises it cools and condenses to form clouds and eventually leads to precipitation. Using cold fronts as an example, the denser mass of cold air forces the lighter warm air to rise. </span>

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The genetic code is thought to have evolved to maximize genetic stability by minimizing the effect on protein function of most s

Nikitich [7]

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!