THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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each new DNA molecule is made of pieces of the parent strand and alternating with segments that have been newly constructed from the free nucleotides.
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One strand of the DNA molecule acts as a template for transcription, in which a strand of mRNA is formed.
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The double-stranded DNA molecule unzips, acts as a template for a new DNA molecule to be constructed, and then zips back together into its original form.
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Each strand of the original, double-stranded DNA molecule serves as a template for a newly constructed, complementary strand.
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Detailed explanation-1: -So, the correct answer is ‘Each strand of the original, double stranded DNA molecule serves as a template for a newly constructed, complementary strand’
Detailed explanation-2: -Semiconservative replication is so named because one of the strands of DNA in each of the two copies of DNA is ancient and conserved while the other is newly produced at the moment of replication.
Detailed explanation-3: -One of the most important concepts of DNA replication is that it is a semi-conservative process (Figure 7.2. 7). This means that every double helix in the new generation of an organism consists of one complete “old” strand and one complete “new” strand wrapped around each other.
Detailed explanation-4: -Semi-conservative replication is the mechanism by which DNA replicates in cells. The double stranded DNA unwinds, hydrogen bonds are broken between the two strands by the enzyme DNA helicase. One of the strands is used as a template to form a second complementary strand.