12) Sickle -cell disease is a genetic disorder that is caused by a DNA mutation that exchanges one base for another, which changes one amino acid in hemoglobin. What is this type of mutation?
a. Deletion
b. Frameshift
c. Insertion
d. Point

In a cladogram' when does a group of organisms branch off

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to