Could someone with the first two answers ?

What is the role of dna ligase in the elongation of the lagging strand during dna replication?

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.

What are the characteristics of subsystem