The second level of compaction of the DNA molecule in the eukaryotic chromosome: Bblóepute oAMH OTBer: a. nucleosome b. metaphase chromosome c. Solenoid d. interphase chromosome

## Step 1<br />The problem is asking for the second level of compaction of the DNA molecule in the eukaryotic chromosome. The DNA molecule in eukaryotic chromosomes undergoes several levels of compaction to fit within the confines of the cell nucleus. <br /><br />## Step 2<br />The first level of compaction is the nucleosome, which is the basic unit of DNA packaging in eukaryotes. It consists of a segment of DNA wrapped around a core of histone proteins.<br /><br />## Step 3<br />The second level of compaction is the solenoid, where the nucleosomes coil and stack upon each other to form a more compact structure.<br /><br />## Step 4<br />The third level of compaction is the metaphase chromosome, which is the most condensed form of the chromosome, observed during cell division.<br /><br />## Step 5<br />The fourth level of compaction is the interphase chromosome, which is the form of the chromosome during the cell's normal functioning, not during division.<br /><br />## Step 6<br />Given these levels, the correct answer to the question is the solenoid, which is the second level of compaction.