BIOL 1402: Exam 4 Questions &
Answers (Grade A+)
Binary Fission -
correct answer ✅the mode of cell division used by bacteria
Describe the process of binary fission -
correct answer ✅- singular, circular bacterial chromosome is
replicated
- replication begins at the origin of replication and proceeds in two
directions to site of termination
- new chromosomes are partitioned to opposite ends of the cell
Septation -
correct answer ✅septum forms to divide the cell into two cells
- facilitated by FtsZ protein
Number of chromosomes in humans -
correct answer ✅46 (23 pairs)
Ploidy in humans -
correct answer ✅2
, BIOL 1402: Exam 4 Questions &
Answers (Grade A+)
Karyotype -
correct answer ✅particular array of chromosomes in an individual
organism
Chromatin -
correct answer ✅complex of DNA and histone proteins that
promote and guide coiling of DNA
Heterochromatin -
correct answer ✅The portion of a eukaryotic chromosome that is
not transcribed into RNA; remains condensed in interphase and
stains intensely in histological preparations.
Euchromatin -
correct answer ✅The portion of eukaryotic chromosome that is
transcribed into mRNA; contains active genes that are not tightly
condensed during interphase
Centromere -
correct answer ✅point of constriction
Answers (Grade A+)
Binary Fission -
correct answer ✅the mode of cell division used by bacteria
Describe the process of binary fission -
correct answer ✅- singular, circular bacterial chromosome is
replicated
- replication begins at the origin of replication and proceeds in two
directions to site of termination
- new chromosomes are partitioned to opposite ends of the cell
Septation -
correct answer ✅septum forms to divide the cell into two cells
- facilitated by FtsZ protein
Number of chromosomes in humans -
correct answer ✅46 (23 pairs)
Ploidy in humans -
correct answer ✅2
, BIOL 1402: Exam 4 Questions &
Answers (Grade A+)
Karyotype -
correct answer ✅particular array of chromosomes in an individual
organism
Chromatin -
correct answer ✅complex of DNA and histone proteins that
promote and guide coiling of DNA
Heterochromatin -
correct answer ✅The portion of a eukaryotic chromosome that is
not transcribed into RNA; remains condensed in interphase and
stains intensely in histological preparations.
Euchromatin -
correct answer ✅The portion of eukaryotic chromosome that is
transcribed into mRNA; contains active genes that are not tightly
condensed during interphase
Centromere -
correct answer ✅point of constriction
