$(function() {
   let elems = $('tr:not(".head")');
   let count = 0;
  
   for (let i=0; i<elems.length; i++) {
      let el = $(elems[i]),
          prev = $(elems[i-1]);
      
      let isEven = (count % 2 == 0);
      
      if (isEven) {
         el.css('background', 'red');
      } else {
         el.css('background', 'yellow');
      }

      if (el.text() == prev.text()) {
         let clr = prev.css('background');
         el.css('background', clr);
      } else {
        count++;
      }
   }
 });

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr class="head">
  <th>One</th>
  <th>Two</th>
</tr>
<tr>
  <td>1</td>
  <td>1</td>
</tr>
<tr>
  <td>1</td>
  <td>1</td>
</tr>
<tr>
  <td>2</td>
  <td>2</td>
</tr>
<tr>
  <td>3</td>
  <td>3</td>
</tr>
<tr>
  <td>3</td>
  <td>3</td>
</tr>
<tr>
  <td>3</td>
  <td>3</td>
</tr>
<tr>
  <td>4</td>
  <td>4</td>
</tr>
<tr>
  <td>5</td>
  <td>5</td>
</tr>
<tr>
  <td>6</td>
  <td>6</td>
</tr>
<tr>
  <td>7</td>
  <td>7</td>
</tr>
<tr>
  <td>8</td>
  <td>8</td>
</tr>
<tr>
  <td>8</td>
  <td>8</td>
</tr>
<tr>
  <td>8</td>
  <td>8</td>
</tr>
  
</table>