Dna (deoxyribonucleic acid) is the basic building block of reproduction in living things. a dna chain is a sequence of chemicals called bases. there are four possible bases: thymine (t), cytosine (c), adenine (a), and guanine (g). (a) how many three-element dna chains are possible? dna chains

0

step-by-step explanation:

you can not divide by 0 so 4 ÷ 0 would be 0

0 × 9999 =0

mark brainliest   : )

justin bieber ml.

goog may be able to you find that answer

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)