A mistake during DNA replication leads to a mutation in the nucleotide sequence shown below.

This mutation results from the insertion of two nucleotides into the original sequence, which causes the reading frame of the sequence to change. This kind of mutation is known as

Exit what always affects measurement error in an experiment? a. investigator bias b. variability in nature c. instrument precision d. misreading the instrument

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.