Actinomycin D is an antibiotic drug that inhibits protien synthesis by blocking transcription. In some cells, the application of the drug does not affect the synthesis of certain protiens. Which of the following best explains such an occurrence?
a)Not al protiens need tRNA molecules for their syntehsis
b)The protiens that are made are using mRNA synthesized before application of the drug.
c)Nuclear protiens do not require the cytoplasmic machinery of ribosomes
d)DNA transcription is not necessary for protien synthesis.

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart

As an asteroid comes close to earth, it's name will change to? apex

Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.