____ is when a(n) ____ makes a species better able to survive and reproduce.

"climate" does not.

Usually if we comparing "weather" condition with another word, the word would be "climate". Weather is the day to day atmospheric condition, but climate is the overall weather of an area throughout long period of time, such as a decade.

Using it in a sentence, we can see the difference. We would say "the weather today is nice", but we wouldn't say "the climate today is nice". "today" is a short period of time.

4 0

3 years ago

Each of the mutants listed below this paragraph has a different mutant form of the gene encoding protein X. Each mutant gene con

Aleks [24]

It should be taken into consideration the presence of frameshift mutations. Frameshift mutation, due to addition or deletion of a base, results in the change of reading frame and consequently in changed protein. But it is known that 3 nucleotides on mRNA code for the specific amino acid. If the number of inserted or deleted nucleotides is 3, it will result in the absence of only 1 amino acid which is not expected to drastically change protein sequence.
Knowing all this, it can be concluded the following:

-/-/+/-/- OK - Due to 4 deletions and 1 insertion, effectively only 3 nucleotides are missing.
+/-/+ Not OK - Due to 1 deletion and 2 insertions, effectively only 1 nucleotide is added leading to the frameshift mutation.
+/-/+/- OK - Due to 2 deletions and 2 insertions, a number of nucleotides remain the same.
+/+/-/+ Not OK - Due to 1 deletion and 3 insertions, effectively only 2 nucleotides are added and the frameshift mutation occurs.
-/+ OK - Due 1 deletion and 1 insertion, a number of nucleotides remain the same.
- Not OK - Due to 1 deletion, the frameshift mutation occurs.
-/-/-/-/-/- OK - Due to 6 deletions, it will be deleted 2 amino acids and the protein will be nearly normal.
+/+/+ OK - Due to 3 insertions, 1 amino acid will be added in excess.
-/- Not OK - Due to 2 deletions, the frameshift mutation occurs.

8 0

3 years ago