This is the normal nucleotide sequence on a dna strand: a-c-t-g-g-a-t

what is a substitution?

me guys.

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

Interactional synchrony is like an "emotional dance" between caregiver and child, wherein they send important signals and share emotions. what does this process form for the child? a. a physical foundation for trust b. a basis of the drive for independence c. positive experiences that stabilize brain connections d. a basis for attachment

What angle should your knees not bend past when squatting? a. 30 degrees b. 45 degrees c. 90 degrees d. 120 degrees