a star expels most of its outer material until only the hot core remains, which then settles down to become a young a white dwarf
Indeed, It is a progestin
<span>B. Flagellated protists. hope I helped give me brainiest please.</span>
Answer
Hi,
A. Radioactive markers
Explanation
Hershey and Chase used specific radioisotopes to form a trace of the two important components of the virus in its life cycle. The 32P was used to identify the DNA while the 35s labeled the proteins.DNA strands have a sugar phosphate where as protein contains sulfur.
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