McGraw Hill Connect Exam 1 (Ch. 1–6) Study Guide 2026 | Complete Review, Practice Questions & Test Prep

McGraw Hill Connect Exam 1 (Ch. 1–6) Study Guide 2026 | Complete Review, Practice Questions
& Test Prep



The basic unit of heredity is the ___________. - ANS ✔✔gene



A variation of a gene is called a(n) _______. - ANS ✔✔allele



The building blocks of DNA are the _____________. - ANS ✔✔nucleotides



A characteristic that an organism displays is called __________. - ANS ✔✔trait



Genetic variation is ultimately based upon which of the following? - ANS ✔✔variations in the
nucleotide sequences of DNA



Select traits associated with prokaryotic cells. Check all that apply.



Genetic information is contained within a nucleoid region.



Genetic material is organized as a single circular chromosome.



They have a cell wall surrounding their plasma membrane.



They have membrane-bound organelles in their cytoplasm. - ANS ✔✔Genetic information is
contained within a nucleoid region.



Genetic material is organized as a single circular chromosome.

, They have a cell wall surrounding their plasma membrane.



Select the cells that are eukaryotic. Check all that apply.



bacteria



fungi



protists



plants



animals - ANS ✔✔protists



plants



animals



fungi



A karyotype is a(n) __________. - ANS ✔✔a display of all of an individual's chromosomes
arranged in pairs



Which of the following would contain genetic material that is 100% identical?



homologous chromosomes