According to the semiconservative model of DNA replication, a completely new double helix is produced
A. after the third replication
B. after the first replication
C. after the second replication
D. after the degradation of the helix into nucleotide
E. after many replications

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.