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2 years ago

Which substance is coded for by A length of dna?

Biology

2 answers:

8_murik_8 [283]2 years ago

8 0

Base is the chemical that a DNA segment codes for. A is the best choice.

The biological substances known as nucleobases, commonly referred to as nitrogenous bases or simply bases, contain nitrogen and combine to produce nucleosides, which are subsequently parts of nucleotides, which are the fundamental constituents of nucleic acids.

The entire query is attached.

The base is the chemical that a DNA segment codes for.

Therefore, choice A is the best one.

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brainly.com/question/14090794

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Yuri [45]2 years ago

4 0

The substance that is coded for by a length of DNA is base. The correct option is A.

Nucleobases, also known as nitrogenous bases or simply bases, are nitrogen-containing biological compounds that form nucleosides, which are then components of nucleotides, all of which are the basic building blocks of nucleic acids.

The complete question is attached.

The substance that is coded for by a length of DNA is base.

Thus, the correct option is A.

For more details regarding nitrogenous bases, visit:

brainly.com/question/14090794

#SPJ1

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Answer:

Explanation:

B is the most likely consequence because of the following facts we are told:

After apple trees were introduced, some apple maggots began feeding from and laying their eggs on apple trees
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This provides a geographical isolation (because they are feeding and laying eggs on separate trees) and reproductive isolation (because they will only mate on the type of tree on which they are born).

These two factors increase the chances that apple maggots feeding on apple trees will only encounter those who have mated on the same tree, and continue to mate this way. Over time, the populations (i.e. apple tree vs hawthorn tree) will intermix less and less. This will mean the genetic pool will become distinct, and natural selection will be acting differently (different habitats and different genes), encouraging speciation.

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