<span>The double helix of dna is which level of structure? a.Primary
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Answer:
Hello There!!
Explanation:
I believe the answer is A. To meet needs through collective effort.
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2.5g
10÷2=5
5÷2=2.5
everytime it completes a half life, you divide the number by two
Answer:
substitution - a base was changed
Explanation:
The nucleotide sequence CTT was changed to the sequence CAT. The T was substituted with an A. This changed the encoded amino acid from Glu to Val.
An insertion is where an additional base is added (e.g. if the sequence changed from CTT to CATT)
A deletion is when a base is lost (e.g. if the sequence changed from CTT to CT)
Answer:
I think it is plastic
Explanation:
even though it take 400 years for a paper bag to decompose, people use more plastic.