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:                                         <i class="fal fa-question-circle fa-xs text-muted align-middle" style="font-size: 20px;"></i>
                                      </a>
                                  </h2>
                                  <p>
                                      An assay measuring the expression of lacZ shows the tissue where the gene is expressed. At IMPC we measure both Adult and Embryo expression. Background staining occurs in wild type mice and embryos at a measurable rate.
                                  </p>
                              </div>
                              <div>
                                  <c:if test="${empty impcAdultExpressionImageFacetsWholemount
  
negative.code:                                                 <div class="tab-pane fade" id="embryo" role="tabpanel" aria-labelledby="embryo-tab">
                                                      <c:choose>
                                                          <c:when test="${not empty embryoExpressionAnatomyToRow}">
                                                              <p class="alert alert-info">An assay measuring the expression of lacZ shows the tissue where the gene is expressed.</p>
                                                              <jsp:include page="genesExpressionEmbryo_frag.jsp"></jsp:include>
                                                          </c:when>
                                                          <c:otherwise>
  