During DNA replication, what occurs? A) The covalent bonds between pairs of nitrogenous bases are broken.
B) The hydrogen bonds between pairs of nitrogenous bases are broken.
C) The hydrogen bonds between sugar and phosphate molecules are broken.
D) The covalent bonds between sugar and phosphate molecules are broken.

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.