Nucleotides Select one: a. are part of DNA molecules but not RNA molecules. b. hold the nucleus together. c. are the building blocks of nucleic acids. d. are proteins that function as enzymes. e. have nothing to do with the genetic information in the nucleus.

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?

The diagram is represented of a part of a plant cell. identify the locations where proton concentration builds up during photosynthesis and cellular respiration