Explanation:
Mutation can result in many different types of change in sequences. Mutations in genes can have no effect, alter the product of a gene, or prevent the gene from functioning properly or completely. Mutations can also occur in nongenic regions.
Answer:
Cell, Nulceus, Chromosome, DNA, Nucleotide
OB. staffing
DNA
Avery is best known for his 1944 discovery that DNA is the material of which genes and chromosomes are made.
