Ascientist determines that there is 25% cytosine in a double standard piece of dna. what can you infer as true

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?