How many chromosomes are shown in a normal human karyotype?
a. 2
c. 44
b. 23
d. 46

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides