Notes in 📅 Merch 27 ✪ JL

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Published	01/14/2024	(1) This phase of trophoblast development where large lacunae are formed happen on which day?A. 8B. 9C. 10 D. 11
Published	01/14/2024	(2) This structure is formed on the 3rd week which is a signaling center in inducing the axial skeletonA. Notochordal plateB. Prenotochordal…
Published	01/14/2024	(3) The tertiary villi are differentiated from the other types of villi by the presence of these structures. A. Villous CapillariesB. C…
Published	01/14/2024	(4) A key signaling pathway involved in the process of neurulation.A. NOTCHB. SSHC. STD. PCP
Published	01/14/2024	(5) A neural crest derived from the ventral pathwayA. MelanocytesB. Motor ganglionC. Adrenal medullaD. Skeletal muscle cell
Published	01/14/2024	(6) If the somite number is 17-20, the approximate age of the embryo in days is?A. 22B. 23C. 24D. 25
Published	01/14/2024	(7) These molecular regulatory factors induce formation of sclerotome from somiteA. NOGGIN & SHHB. FGF8 & BMP4C. Retinoic AcidD…
Published	01/14/2024	(8) A key signaling pathway which involves the process of blood vessel formation.A. NOTCHB. SHHC. STD. PCP
Published	01/14/2024	(9) These group of genes are said to be involved in the cranial-to-caudal patterning of the derivatives of the germ layers:A. SHHB. HOXC. WNTD. SLUG
Published	01/14/2024	(10) A CRL length of 17-22 mm is how many weeks in gestational age?A. 5B. 6C. 7D. 8
Published	01/14/2024	(11) Somite formation starts as early as the 2nd wk of the embryonic lifeA. TrueB. False
Published	01/14/2024	(12) Which of the following happens at Day 24-25?A. Cephalocaudal foldingB. Closing of caudal neuroporeC. Appearance of hind limbsD. Fusion of ne…
Published	01/14/2024	(13) The face of the embryo is more human-like and disappearance of the tail are seen on these days:A. 31-35B. 43-49C. 36-42D. 50-56
Published	01/14/2024	(14) At 3-4 weeks, the transverse section of the embryo shows the neural tube dorsally and the gut tube ventrally.A. TrueB. False
Published	01/14/2024	(15) The parietal and visceral layers of serous membrane are continuous of the dorsal mesentery.A. TrueB. False
Published	01/14/2024	(16) The central tendon of the diaphragm is derived from the dorsal mesentery of the esophagusA. TrueB. False
Published	01/14/2024	(17) During this week of fetal life, the herniated intestinal loops return to the abdominal cavity:A. 9B. 10C. 11D. 12
Published	01/14/2024	(18) The wrinkled appearance of the skin of the fetus at 6 month is due to:A. Absence of muscle tissueB. Lack of connective tissueC. Abundance of fat …
Published	01/14/2024	(19) Fetal eyes are sensitive to light at this age in weeksA. 28B. 26C. 20D. 14
Published	01/14/2024	(20) In the 4th month of life, the fetal circulation is separated from the maternal blood by the syncytium and endothelial cells.A. TrueB. False
Published	01/14/2024	MMC:(21) What event/s is/are true of Week 2?A. Primordial germ cells are formed from the epiblastB. Differentiation of trophoblastC. Bilaminar disc fo…
Published	01/14/2024	MMC:(22) Which of the following pairing/s is/are true?A. Closure of posterior neuropore - Days 18-20B. Umbilical vessels formation - Days 19-20C. Somi…
Published	01/14/2024	MMC:(23) Neurulation is completed when the following event/s happenA. Formation of somitesB. Formation of ectodermC. Fusion of neural foldsD. Closure …
Published	01/14/2024	MMC:(24) Which of the following best describes the homeobox genes?A. Is an RNA-binding motifB. Cranial to caudal patterningC. Specifies the caudocrani…
Published	01/14/2024	MMC:(25) This is/are true about gastrulation:A. Involves FGF8B. Initiates primitive streak formationC. All germ layers arise from epiblastD. Formation…
Published	01/14/2024	MMC:(26) Which of the following is true for both mitosis and meiosis?A. Divide into phasesB. Replication of genetic materialC. Production of daughter …
Published	01/14/2024	MMC:(27) The events of fertilization:1. The spermatozoa is incapacitated2. Resumption of the second meiotic division ofthe oocyte3. Sperm penetrates t…
Published	01/14/2024	MMC:(28) What can be seen during day 13?A. Formation of the primary villiB. Appearance of the EE somatopleureC. Formation of the chorionic cavityD. Em…
Published	01/14/2024	MMC:(29) Which of the following does endoderm arises to:1. Epithelial lining of the respiratory tract2. Blood vessels3. Epithelial lining of the urina…
Published	01/14/2024	MMC:(30) Which of the following is true of the blastocyst?A. Formation of blastomeresB. Confluence of intercellular spacesC. Flattening of the embryob…
Published	01/14/2024	MMC:(31) Which infectious agents can cause microcephaly?A. CytomegalovirusB. SyphilisC. Herpes Simplex VirusD. Varicella Virus
Published	01/14/2024	MMC:(32) These chemical agents are associated with limb anomalies:1. Lithium2. Thalidomide3. Amphetamines4. Valproic Acid
Published	01/14/2024	MMC:(33) Which of the following diagnostic procedures are considered invasive and are used as a high risk in pregnancy?A. PUBSB. Chorionic Villus Samp…
Published	01/14/2024	MMC:(34) The following factors are responsible for keeping NODAL expression on the left side of the embryo.A. FGF8B. 5HTC. MAD3D. HNF-3B
Published	01/14/2024	(35) Which of the following structures arise from the endoderm?A. CNSB. Parenchyma of thyroid glandC. Pituitary glandD. Transitional epithelium
Published	01/14/2024	(36) holoprosencephaly, eye defects, deafnessA. Triple X SyndromeB. Trisomy 21C. Prader-Willis SyndromeD. Trisomy 13E. Fragile X Syndrome
Published	01/14/2024	(37) Microdeletion on the paternal chromosomeA. Triple X SyndromeB. Trisomy 21C. Prader-Willis SyndromeD. Trisomy 13
Published	01/14/2024	(38) FMRI gene, large ears, large testesA. Triple X SyndromeB. Trisomy 21C. Trisomy 16D. Fragile X Syndrome
Published	01/14/2024	(39) Female, 47 Chromosomes, XXX geneA. Triple X SyndromeB. Trisomy 21C. Trisomy 16D. Fragile X Syndrome
Published	01/14/2024	(40) Epicanthal folds, flat facies,hypotoniaA. Triple X SyndromeB. Trisomy 21C. Trisomy 16D. Fragile X Syndrome
Published	01/14/2024	(41) Its absence causes a failure in gastrulation.A. FGF B. NODALC. HNF3-BD PITX2E. SNAIL
Published	01/14/2024	(42) Induces differentiation of the embryoblastA. NODALB. PITXC. HNFB-3D. FGF
Published	01/14/2024	(43) Regulates effector genes for right-sidednessA. FGFB. NODALC. HNF-3BD. PITX2E. SNAIL
Published	01/14/2024	(44) Master gene for establishing left-sidednessA. FGFB. NODALC. HNF-3BD. PITX2E SNAIL
Published	01/14/2024	(45) Initiate and maintain primitive streakA. FGFB. NODALC. HNF-3BD. PITX2E. SNAIL
Published	01/14/2024	(46) Higher embryonic forms never resemble other forms except its ownA. SchwannB. PanderC. WeissmannD. SpeemanE. Baer
Published	01/14/2024	(47) Equal chromosomal contribution by male and female gamete.A. SchwaanB. PanderC. WeissmannD. SpeemanE. Baer
Published	01/14/2024	(48) Cell is the basic unit of animal lifeA. SchwannB. PanderC. WeissmannD. Speeman
Published	01/14/2024	(49) Credited for the term “blastoderm”A. SchwannB. PanderC. WeissmannD. SpeemanE. Baer
Published	01/14/2024	(50) Embryonic inductionA. SchwannB. PanderC. WeissmannD. SpeemanE. Baer
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