BCOR Exam 1 Study Guide with
Complete Solutions
Pangenesis - Answer✔️✔️-Genetic information travels from all parts of the
body to the reproductive organs - incorrect
Inheritance of acquired characteristics - Answer✔️✔️-acquired traits become
incorporated into hereditary information - incorrect
Preformationism - Answer✔️✔️-Miniature organism resides in sex cells, and
all traits are inherited from one parent - incorrect
blending inheritance - Answer✔️✔️-genes blend and mix - incorrect
Germ-plasm theory - Answer✔️✔️-all cells contain a complete set of genetic
information - correct
cell theory - Answer✔️✔️-all life is composed of cells, and cells arise only
from cells - correct
Mendelian inheritance - Answer✔️✔️-traits are inherited in accord with
defined principles - correct
Allele - Answer✔️✔️-Multiple forms of one gene
In what stage of the cell cycle does the cell duplicate its DNA - Answer✔️✔️-
S
What is the constricted region of the chromosome where the kinetochore
forms? - Answer✔️✔️-centromere
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The products of mitosis are - Answer✔️✔️-genetically identical to the
parents
Which stage of mitosis involves sister chromatids separating and moving
toward opposite poles? - Answer✔️✔️-Anaphase
If a cell has six chromosomes while it is in the G1 stage of the cell cycle,
how many will it have in the G2 stage - Answer✔️✔️-6 chromosomes and 12
DNA molecules
The separation of homologous chromosomes occurs in which stage of
meiosis - Answer✔️✔️-Anaphase 1
Two sources of genetic variation from meiosis - Answer✔️✔️-1. Random
distribution of maternal and paternal chromosomes
2. Crossing over at Prophase 1
Which molecule holds sister chromatids together during mitosis and
meiosis? - Answer✔️✔️-cohesin
Interphase - Answer✔️✔️-period of the cell cycle between cell divisions
Which phase of the cell cycle best describes a cell that has exited from
active cell division and remains indefinitely with each chromosome
consisting of a single chromatid? - Answer✔️✔️-G0
During which phase of the cell cycle would each cell be undergoing
biochemical events required to prepare for cell division, and each
chromosome consist of two identical chromatids? - Answer✔️✔️-G2
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