30 Questions
What process involves the conversion of germ cells into male and female gametes?
Gametogenesis
Which structure is formed after the fertilization of the female gamete?
Zygote
How many homologous pairs of chromosomes are embedded in the DNA of an individual?
23 pairs
Which cells are genetically identical to the parent cell in the process of mitosis?
Daughter cells
What is the function of meiosis in gametogenesis?
Reduce chromosome number
At fertilization, what is the result in terms of chromosome number?
Diploid number remains constant
What is the main function of Sertoli cells in the process of spermatogenesis?
Support and nourish developing sperm cells
Which cells surround germ cells in the testis at birth?
Follicular cells
What is the term for the condition characterized by very few sperm in the ejaculate?
Oligozoospermia
Which type of spermatogonia give rise to primary spermatocytes?
Type A spermatogonia
What is the main function of sustentacular cells in spermatogenesis?
Support and protect developing sperm cells
During which stage of meiosis are secondary spermatocytes formed?
Meiosis II
Which syndrome is characterized by the absence of ovaries and is found only in women?
Turner syndrome
Which trisomy is associated with a high incidence of leukemia, infections, thyroid dysfunction, and premature aging?
Trisomy 21 (Down Syndrome)
Which chromosome abnormality leads to sterility, gynecomastia, and testicular atrophy, and is detected at puberty?
Klinefelter syndrome
Which syndrome is characterized by upward slanting eyes, epicanthal folds, flat faces, cardiac defects, small ears, and hypotonia?
Trisomy 21 (Down Syndrome)
Which condition is found only in males and may lead to possible mental retardation if the individual has a XXXY karyotype?
Klinefelter syndrome
Which trisomy is associated with the characteristic features of microphthalmia, enophthalmia, and coloboma?
Trisomy 13
What is the term for the stage when the Granulosa cells transform into Cumulus oophorus?
Secondary Follicles
Which cell type changes into Granulosa cells during follicle maturation?
Follicular cells
What is the fate of the polar body in the maturation and ovulation process?
Undergoes Meiotic division II
Which layer forms coats to create Theca folliculi?
Granulosa cells
What marks the completion of Meiotic division II?
Degeneration or apoptosis
Which protein component inactivates BMP-4 gene during organogenesis?
Chardin
What is the function of somatic or parietal mesoderm?
Develops into Amnion
Which embryonic layer connects the Paraxial to the Lateral layer?
Intermediate layer
What does the Vitelline duct represent in embryonic development?
Connection between embryo and Yolk sac
Which region undergoes enfolding and rapid longitudinal growth of the central nervous system?
Cephalo–caudal
What is the role of Homeobox Genes in embryonic development?
Form endodermal germ layers
What does the Allantois become in the embryo's development?
Communicating stalk of the embryo
Test your knowledge on the process of gametogenesis where germ cells transform into male and female gametes, as well as the crucial step of fertilization in embryonic development. Explore how gametes are produced and migrate to developing gonads.
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