anchor.diff:                                                  <div class="tab-pane fade" id="embryo-wt-expression" role="tabpanel" aria-labelledby="embryo-wt-expression-tab">
                                                       <c:choose>
                                                           <c:when test="${not empty embryoExpressionAnatomyToRow}">
  +                                                            <p class="alert alert-info">Background staining occurs in wild type mice and embryos at a measurable rate.</p>
                                                               <jsp:include page="genesExpressionWTEmbryo_frag.jsp"></jsp:include>
                                                           </c:when>
                                                           <c:otherwise>
  
positive.code:                                                 <div class="tab-pane fade show active" id="adult" role="tabpanel" aria-labelledby="adult-tab">
                                                      <c:choose>
                                                          <c:when test="${not empty expressionAnatomyToRow }">
                                                              <div>
                                                                  <jsp:include page="genesExpressionAdult_frag.jsp"></jsp:include>
                                                              </div>
  
negative.code:                             <div class="row">
                                  <div class="col-12">
                                      <c:if test="${empty impcImageGroups and empty solrFacets}">
                                          <div class="alert alert-warning mt-3">Phenotype associated images not available</div>
                                      </c:if>
  
                                      <c:if test="${not empty impcImageGroups or not empty solrFacets}">
  