Human and Cellular Biology CH 2 Examination: Spermatogenesis,
Oogenesis, Meiosis I & II, Mitosis, Cell Cycle (G1, S, G2, M, G0),
Chromosome Dynamics, Sister Chromatids, Homologous
Chromosomes, Nondisjunction, Spindle Apparatus, Kinetochore,
Leydig & Sertoli Cells, Acrosome Formation, Hormonal Regulation
(Estrogen, Progesterone, hCG), Menstrual Cycle Phases, Genetic
Variability, Gametogenesis, Fertilization, Ovulation, Endometrial
Development, Blastula, Blastocyst, Cytokinesis, Cytoskeleton, ATP,
Enzyme Active Sites, Phagocytosis, Adaptive Immunity, Bohr Effect,
Cardiovascular & Respiratory Integration Exam Questions Verified and
Provided with Complete A+ Graded Rationales Latest Updated 2026
B.
Diploid cells called spermatogonia differentiate into primary spermatocytes, which undergo the
first meiotic division to yield to haploid secondary spermatocytes. These undergo a second
meiotic division to become mature spermatids. The spermatids then undergo a series of
changes leading to the production of mature sperm, or spermatozoa
Which of the following is the correct sequence of the development of a mature sperm cell?
A. Spermatid->spermatocyte->spermatogonium->secondary spermatocyte->spermatozoan
B. Spermatogonium->primary spermatocyte->secondary spermatocyte->spermatid-
>spermatozoan
C. Spermatozoan->primary spermatocyte->secondary spermatocyte->spermatogonium-
>spermatid
D. Spermatogonium->primary spermatocyte->secondary spermatocyte->spermatozoan-
>spermatid
, C.
From the time of birth until shortly before ovulation, all egg cells are arrested at the prophase
stage of meiosis I. These cells are referred to as primary oocytes.At ovulation, the egg cell has
completed meiosis I and is now arrested in metaphase II as a haploid cell called a secondary
oocyte. When a sperm penetrates the outer layer of the secondary oocyte, it completes meiosis
II to become a mature ovum.
Which of the following correctly pairs the stage of development of an egg cell with the relevant
point in a woman's life cycle?
A. From birth to menarche-prophase I
B. At ovulation-metaphase I
C. At ovulation-metaphase II
D. At fertilization-prophase II
A.
The spindle apparatus first interacts with the kinetochore fibers near the end of prophase.
While the spindle apparatus aligns the chromosomes at the equatorial plate during metaphase,
choice (B), the initial connection of the microtubule to the kinetochore occurs in prophase
Some studies suggest that in patients with Alzheimer's disease, there is a defect in the way the
spindle apparatus attaches to the kinetochore fibers. At which stage of the mitotic division
would one first to expect to be able to visualize this problem?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
D.
Oogenesis, Meiosis I & II, Mitosis, Cell Cycle (G1, S, G2, M, G0),
Chromosome Dynamics, Sister Chromatids, Homologous
Chromosomes, Nondisjunction, Spindle Apparatus, Kinetochore,
Leydig & Sertoli Cells, Acrosome Formation, Hormonal Regulation
(Estrogen, Progesterone, hCG), Menstrual Cycle Phases, Genetic
Variability, Gametogenesis, Fertilization, Ovulation, Endometrial
Development, Blastula, Blastocyst, Cytokinesis, Cytoskeleton, ATP,
Enzyme Active Sites, Phagocytosis, Adaptive Immunity, Bohr Effect,
Cardiovascular & Respiratory Integration Exam Questions Verified and
Provided with Complete A+ Graded Rationales Latest Updated 2026
B.
Diploid cells called spermatogonia differentiate into primary spermatocytes, which undergo the
first meiotic division to yield to haploid secondary spermatocytes. These undergo a second
meiotic division to become mature spermatids. The spermatids then undergo a series of
changes leading to the production of mature sperm, or spermatozoa
Which of the following is the correct sequence of the development of a mature sperm cell?
A. Spermatid->spermatocyte->spermatogonium->secondary spermatocyte->spermatozoan
B. Spermatogonium->primary spermatocyte->secondary spermatocyte->spermatid-
>spermatozoan
C. Spermatozoan->primary spermatocyte->secondary spermatocyte->spermatogonium-
>spermatid
D. Spermatogonium->primary spermatocyte->secondary spermatocyte->spermatozoan-
>spermatid
, C.
From the time of birth until shortly before ovulation, all egg cells are arrested at the prophase
stage of meiosis I. These cells are referred to as primary oocytes.At ovulation, the egg cell has
completed meiosis I and is now arrested in metaphase II as a haploid cell called a secondary
oocyte. When a sperm penetrates the outer layer of the secondary oocyte, it completes meiosis
II to become a mature ovum.
Which of the following correctly pairs the stage of development of an egg cell with the relevant
point in a woman's life cycle?
A. From birth to menarche-prophase I
B. At ovulation-metaphase I
C. At ovulation-metaphase II
D. At fertilization-prophase II
A.
The spindle apparatus first interacts with the kinetochore fibers near the end of prophase.
While the spindle apparatus aligns the chromosomes at the equatorial plate during metaphase,
choice (B), the initial connection of the microtubule to the kinetochore occurs in prophase
Some studies suggest that in patients with Alzheimer's disease, there is a defect in the way the
spindle apparatus attaches to the kinetochore fibers. At which stage of the mitotic division
would one first to expect to be able to visualize this problem?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
D.
