04. e. coli cells that have been cultured in a light medium containing n-ammonium chloride as the sole nitrogen source were transferred to a heavy medium contai

04. E. coli cells that have been cultured in a light medium containing N-ammonium chloride as the sole nitrogen source were transferred to a heavy medium containingN-ammonium chioride. After three generations of growth in the heavy medium, what will be the proportion of dual light strands (LL), dual heavy strands (HIH) and hybrid light- plus-heavy strands (LH) in the DNA duplexes? a. 3/4 LH to 1/4 HH b. 3/4 HH to 1/4 LH C. 3/4 HH to 1/2 LH d. 3/4 LL to 1/4 LH itsoaan were transferred to lioht nitrogen