Why did alfred hershey and martha chase choose to use bacteriophages in their research?

a) bacteriophages are made up of dna surrounded by a protein cast.

b) bacteriophages break bacterial cells into basic components.

c) bacteriophages contain radioactive sulfur and phosphorus.

d) all of the above.

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.