Sickle cell anemia is a disease of red blood cells in which a genetic mutation in dna leads to a mutation in hemoglobin. a single base change alters the dna sequence ctc to cac which codes for the wrong amino acid. what amino acid is coded for by the normal dna sequence, ctc?

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?