Sickle cell anemia is the result of a point mutation, a change in just one nucleotide in the gene for hemoglobin. This mutation causes the hemoglobin in red blood cells to distort to a sickle shape when deoxygenated. The sickle-shaped blood cells clog in the capillaries, cutting off circulation.
Saving an attachment. Saving attachments from Mail is just as easy. Next time you receive a message to which somebody has attached a file, just tap and hold on that attachment until a Share sheet pops up. In the bottom row of icons, choose Save Attachment.aving an attachment. Saving attachments from Mail is just as easy. Next time you receive a message to which somebody has attached a file, just tap and hold on that attachment until a Share sheet pops up. In the bottom row of icons, choose Save Attachment.
Step 2. Check the box under the Delete button. This will select all the email messages in your Yahoo! Mail inbox. If you wish to keep any important emails, uncheck the boxes next to them. Related Reading: How to Read & Track Yahoo Emails. Step 3. Click the Delete button to remove the selected emails.ortunately, Yahoo! Mail has an option that allows you to immediately select all emails in your inbox. You can then deselect any important emails and proceed to remove the rest from the inbox. Step 1. Sign in to your Yahoo! Mail account.