Astrand of dna contains the bases adenine, cytosine, cytosine, and guanine, in that order. which would be the order of the bases on the complementary strand of dna? cytosine, adenine, adenine, and thymine cytosine, thymine, thymine, and adenine thymine, guanine, guanine, and cytosine thymine, adenine, adenine, and cytosine

The complementary strand would contain bases in the sequence thymine, guanine, guanine, and cytosine.

Further Explanation:

The DNA or deoxyribonucleic acid is a structure composed of two strands both of which are arranged in a helix. Each strand is a long stretch of nucleotides that are linked to each other through a phosphodiester bond. These nucleotides are arranged randomly in the DNA strand. The nucleotides are made up of a sugar molecule (ribose), a phosphate group, and a nitrogen-containing base (adenine, guanine, cytosine, and thymine). The thymine and cytosine are categorized as pyrimidine while guanine and adenine come under purine.

In the double-helical structure, a purine base pairs with a pyrimidine. For example, cytosine forms bonding with guanine while thymine pairs with adenine. Both the strand are attached together by hydrogen bonds formed between the complementary nucleotides from each strand. Each base is also bonded to water in the external environment through hydrogen bonding.

Here, the given sequence of the nucleotides in one strand (template strand) of DNA is adenine, cytosine, cytosine, and guanine. The second strand would contain nucleotides complementary to the one in the template strand. Therefore, the sequence would be thymine, guanine, guanine, and cytosine, all of which are complementary to the nucleotide sequence in the template strand.

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Answer Details:

Grade: Higher secondary

Subject: Biology

Chapter: Structure of DNA

Keywords:

DNA, deoxyribonucleic acid, sugar, ribose, phosphate, a nitrogenous base, adenine, guanine, thymine, cytosine, complementary strand, template strand, hydrogen bonds, phosphodiester bonds.  

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