Which statement best explains tha cause of sickle cell disease

Dna is colied into chromosomes in a cell

Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.

Describe how a student should adjust the microscope to see the cells on a slide more clearly?