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Published	01/14/2024	The mesoderm gives rise to which of the following? A. Heart B. Pituitary gland C. Cerebrum D. Central nervous system
Published	01/14/2024	In monozygotic twins, splitting occurs during this cell stage of zygote: A. 2 B. 4 C. 8 D. 16
Published	01/14/2024	The following are true of gastrulation: A. Formation of mesoderm and endoderm B. Involves FGF8 C. Formation of allantois D. Begins with neural plate f…
Published	01/14/2024	Establishment of body axes occurs during this week of embryonic life: A. 3rd B. 4th C. 5th D. 6th
Published	01/14/2024	Formation of notochord and somitomeres caudally is regulated by which of the following? A. Lefty2 B. PITX23 C. BMP4 D. Brachyury (T) gene
Published	01/14/2024	Which of the following is true of the blastocyst? A. Confluence of intercellular spaces B. Flattening of the embryoblasts C. Formation of blastomeres …
Published	01/14/2024	The following events happen during the third week: A. Formation of EEM B. Notochord formation C. Formation of primary villus D. Neural fold fusion
Published	01/14/2024	Neurulation is completed when the following event/s happen/s: A. Formation of ectoderm B. Closure of posterior neuropore C. Fusion of the neural folds…
Published	01/14/2024	Bending of the embryo begins at this time: A. Days 20-21 B. Days 22-23 C. Days 24-25 D. Days 26-27
Published	01/14/2024	Umbilical vessels begin to form during this time: A. 14-15 days B. 16-18 days C. 19-20 days D. 20-21 days
Published	01/14/2024	The events of fertilization: A. The spermatozoa is incapacitated B. Oocyte membrane is penetrable after fusion with sperm C. Sperm penetrates through …
Published	01/14/2024	Which of the following is true of Turner syndrome? A. Presence of an extra copy at chromosome 21 B. Found only in males and cells have 47 chromosomes …
Published	01/14/2024	The diaphragm develops from these structures: A. Pleuroperitoneal membranes B. Gastric mesentery C. Septum transversalis D. Peritoneal folds
Published	01/14/2024	Appearance of hind limb buds occur during this time of embryonic life: A. 26-27 days B. 28-30 days C. 31-35 days D. 36-42 days
Published	01/14/2024	The primordial germ cells are formed from the epiblast during this time of embryonic life: A. Week 2 B. Week 3 C. Week 4 D. Week 5
Published	01/14/2024	Digital rays appear in hand and foot plates during these days of embryonic life: A. 28-30 days B. 31-35 days C. 36-42 days D. 43-49 days
Published	01/14/2024	Which of the following pairings of structural abnormality and its cause is true? A. Fragile site in FMRI gene – Fragile Y syndrome B. Microdeletion in…
Published	01/14/2024	The 16-cell stage of the zygote is formed during this time: A. Day 2 B. Day 3 C. Day 4 D. Day 8
Published	01/14/2024	Which of the following is true of both mitosis and meiosis? A. Production of daughter cells B. Both with subdivisionsC. Transcription of genetic mater…
Published	01/14/2024	The following is true of neurulation: A. Posterior neuropore closes earlier B. Regulated by fibroblast growth factor C. Formation of neural tube from …
Published	01/14/2024	Initiation of gastrulation is marked by the formation of this structure: A. Primitive streak B. Neural tube C. Notochord D. Primitive node
Published	01/14/2024	The endoderm gives rise to the following: A. Peripheral nervous system B. Epithelium of the respiratory tract C. Epithelial lining of the ovary D. Blo…
Published	01/14/2024	The following events happen during the 2nd week of life: A. Amniotic cavity surrounds the yolk sac B. Appearance of the exocoelomic cavity C. Formatio…
Published	01/14/2024	The following are seen during day 13: A. Formation of primary villi B. Formation of amniotic cavity C. Embryoblasts invade uterine mucosa D. Appearanc…
Published	01/14/2024	The body cavity is formed from which of the following? A. Intermediate mesoderm B. Endoderm C. Paraxial mesoderm D. LPM
Published	01/14/2024	This structure characterizes the growth of the trophoblast during the 3rd week of life: A. Amnion B. Connecting stalk C. Primary villi D. Secondary yo…
Published	01/14/2024	A significant event during the 2nd week of life: A. Splitting of mesoderm into 3 layers B. Formation of trilaminar disc C. Hypoblast gives rise to the…
Published	01/14/2024	Somites appear during which day of embryonic life? A. 19th B. 20th C. 21st D. 22nd
Published	01/14/2024	Which of the following best describes the homeobox genes? A. Specifies caudocranial axis B. Is an RNA-binding motif C. Conserved in humans as 4 copies…
Published	01/14/2024	Closing of cranial neuropore occurs during A. days 20-21 B. days 22-23 C. days 24-25 D. days 26-27
Published	01/14/2024	Which of the following gives rise to head musculature? A. Dermatome B. Myotome C. Somitomere D. Somites
Published	01/14/2024	The sternum develops from which of the following?A. Intermediate mesoderm B. Lateral plate mesoderm C. Paraxial mesoderm D. Endoderm
Published	01/14/2024	Which of the following develops from an abaxial precursor? A. Intercostals B. Rhomboids C. Distal limb muscles D. Scalenes
Published	01/14/2024	A vertebra is formed from fusion of the caudal half of the somite with the cranial half of the neighboring somite. This process is termedA. recanaliza…
Published	01/14/2024	Which curve of the spine is formed when the child is able to hold his/her head up? A. Cervical B. Thoracic C. Lumbar D. Sacral
Published	01/14/2024	Fingers and toes are formed from cell death of the A. AER B. undifferentiated zone C. interzone D. LSF
Published	01/14/2024	Patterning of vertebral shapes is regulated by A. SHH B. FGF8 C. HOX genes D. BMP4
Published	01/14/2024	Flat bones develop from this part of the neurocranium: A. Mesenchyme B. Cartilage C. Pharyngeal arch D. Membrane
Published	01/14/2024	In smooth muscle development, which factor enhances the SR factor? A. HOX B. WNT C. MRTFs D. FGF
Published	01/14/2024	Patterning of muscle formation is controlled by this tissue type: A. Epithelium B. Muscle C. Connective D. Nervous
Published	01/14/2024	The following facial bones arise from the first pharyngeal arch, except? A. Maxilla B. Malleolus C. Zygomatic bone D. Stapes
Published	01/14/2024	Which of the following events is absent in cardiac muscle development? A. Fusion of myofibrils B. Branching of cells C. Non-fusion of myoblasts D. Fus…
Published	01/14/2024	Limb bones form in which of the following? A. Intramembranous ossification B. Endochondral ossification C. Interstitial growth D. Appositional growth
Published	01/14/2024	Complete set of cartilages in the lower extremities appear during this time: A. 3rd-5th weekB. 5th-7th week C. 6th-8th week D. 8th-10th week
Published	01/14/2024	Which of the following is true of the abaxial domain? A. From VLL cells B. Remain in the paraxial mesoderm C. Muscle cells that do not cross the LSF D…
Published	01/14/2024	This factor control thumb to little finger patterning: A. BMP4 B. FGF8 C. HOX genes D. SHH
Published	01/14/2024	The prechordal chondrocranium is formed from which of the following? A. Ectoderm B. Neural crest C. Endoderm D. Mesoderm
Published	01/14/2024	The molecular regulating factors which activates the pathways for development of muscle: A. BMP4 B. WNT C. HOX D. MRFs
Published	01/14/2024	Synovial and fibrous joints are formed from A. AER B. LSF C. LSF D. Undifferentiated zone
Published	01/14/2024	The face is smaller than the neurocranium in the beginning because of A. large mandible B. absence of paranasal sinuses C. absence of the jaw bones D.…
Published	01/14/2024	Molecular factor which regulates tendon development: A. FGF B. BMP4 C. SCLERAXIS D. MRF
Published	01/14/2024	Which of the following differentiates development of skeletal muscle from that of cardiac muscle? A. Non-fusion of myoblasts B. Fusion of myoblasts C.…
Published	01/14/2024	This factor regulates patterning of the AP axis of the limb: A. SHH B. BMP4 C. HOX genes D. ZPA
Published	01/14/2024	The vertebra is formed from which of the following? A. DermatomeB. Sclerotome C. Myotome D. Somitomere
Published	01/14/2024	The axial skeleton generally develops from which of the following? A. Neural crest B. Mesoderm C. Endoderm D. Ectoderm
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