MCQ on Developmental Biology and Genetics (Genetics MCQ-4) Lecture Notes MCQ Biology Welcome to Genetics MCQ 04 Genetics Quiz on Developmental Genetics and Embryology This question set on Genetics MCQ-04: Developmental Genetics and Embryology consists of 10 questions in MCQ format. Please select the correct answer and at the end of the test, you have to click on 'SUBMIT' button to see your Score and the Correct Answers. Please click 'NEXT' button to start the quiz... 1. Mutations in homeotic genes can lead to what type of developmental defect? The development of segments will be changed wholesale from their normal identity to that of a different segment The embryo will develop with every other segment failing to form Several adjacent segments will be missing The anterior portion of the embryo does not develop2. Sxl genes of Drosophila regulate expression at: Post-transcriptional level Transcriptional level Translational level Post-translational level3. Homeotic genes are responsible for: Provide gradient in developing embryo Regulate the development of anatomical structures Codes morphogens Maintaining gaps in segments4. Dorsal lip of amphibian is equivalent to the _____ in chicks: Henson node Animal pole Vegetal pole Primitive grove5. Homeotic genes are responsible for: Homeostasis Development Cell cycle Gene regulation6. The emergence of the polarity of an embryo is the result of: Cytoplasmic determinants within the cells All the above Cytoplasmic differences between cells Positive and negative charges interacting with the early development7. Anterior‐posterior limb axis and dorsal-ventral nerve plate are determined by: Bicoid Sonic hedgehog Cactus Pax38. The dorsal mutant in Drosophila will result in: There would be no effect Ventralization of the dorsal side Dorsalization of the ventral side Anterior‐posterior pattern formation will be affected9. For making transgenic animals in the fertilized egg, the best place to insert trans‐gene is in: Cytoplasm Female pronuclei Male pronuclei Cleavage cells10. Organ identity genes are responsible for the correct positioning of floral organs on floral meristem. Mutation in them will lead to: More number of organs in certain whorls No flower The appearance of organs at incorrect positions Loss of organs from certain whorls11. The mosaic developmental pattern is always: Conditional Non-autonomous Regulative Autonomous 12. The portion of the Drosophila body plan which will produce the wings is called Telson Abdomen Thorax Dorsal code13. During development, the homing of the cell is mediated by: Cadherin Integrin Laminin Selectin14. Which statement is correct for capacitation? Maturation of spermatozoa in the male body Meiotic division in the egg after penetration of sperm Maturation of egg in oviduct after fertilization Maturation of mammalian spermatozoa after entering into the oviduct of the female15. The establishment of the anterior-posterior or dorsal-ventral body axes is called: Morphogenesis Division Pattern formation DifferentiationYou have reached at the End of this Quiz. Please Click 'SUBMIT' button to see your Score and the Correct Answers... Get our Updates on GENETICS in your E-mail Inbox We will not spam your account… Enter your e-mail address Don’t forget to Activate your Subscription…. 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