The gel below represents the restriction analysis of a 10 kb linear dna. in addition to the size marker lane (m, size of fragments indicated), the lanes show an uncut dna sample (uc), a sample digested with ecori (e), a sample digested with bamhi (b), and a sample digested with both enzymes (e+b). based on the pattern of bands in the gel, which of the restriction maps at right most accurately describes this dna?

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.