Answer:
(A): DNA and protein
(B): The case for proteins appeared stronger until the 1940s, especially since biochemists had identified them as a class of macromolecules with great heterogeneity and function specificity, essential requirements for the hereditary material. Moreover, little was known about nucleic acids, the physical and chemical properties of which seemed far too uniform to account for the multitude of specific hereditary traits of each organism
(C): Virulent strains are pathogenic (causing disease), whereas non-virulent strains are non-pathogenic (harmless) strains.
Nucleotides is the answer: they have a phosphate group, a deoxyribose sugar, and a nitrogenous base.
Answer:
first because that the first
The chromosomes separate during anaphase, and in telophase two... There are many similarities between mitosis in plant cells, such as onion cells, and animal cells, such as whitefish blastula. ... One difference is that most plant cells don't have centrioles while animal cells do.
