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Download PDF тАУ Embryology & Economic Biology Mock Test for UKSSSC Pashudhan Prasar Adhikari (LEO)

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Embryology & Economic Biology Mock Test for UKSSSC Pashudhan Prasar Adhikari (LEO)
Q1. In amphibian eggs, the cleavage is:
A) Holoblastic equal
B) Holoblastic unequal
C) Meroblastic
D) Superficial
Q1. рдЙрднрдпрдЪрд░ (amphibian) рдХреЗ рдЕрдВрдбреЛрдВ рдореЗрдВ, рд╡рд┐рджрд▓рди (cleavage) рдХреИрд╕рд╛ рд╣реЛрддрд╛ рд╣реИ?
A) рд╣реЛрд▓реЛрдмреНрд▓рд╛рд╕реНрдЯрд┐рдХ рд╕рдорд╛рди
B) рд╣реЛрд▓реЛрдмреНрд▓рд╛рд╕реНрдЯрд┐рдХ рдЕрд╕рдорд╛рди
C) рдореЗрд░реЛрдмреНрд▓рд╛рд╕реНрдЯрд┐рдХ
D) рд╕рддрд╣реА (Superficial)
Answer: (B)
Frog eggs have a moderate amount of yolk at the vegetal pole, causing complete but unequal cleavage.
рдореЗрдВрдврдХ рдХреЗ рдЕрдВрдбреЛрдВ рдореЗрдВ рд╡рдирд╕реНрдкрддрд┐ рдзреНрд░реБрд╡ рдкрд░ рдпреЛрдХ рд╣реЛрддрд╛ рд╣реИ, рдЬрд┐рд╕рд╕реЗ рдкреВрд░реНрдг рд▓реЗрдХрд┐рди рдЕрд╕рдорд╛рди рд╡рд┐рджрд▓рди рд╣реЛрддрд╛ рд╣реИред
Q2. The concept of 'Primary Organizer' in embryonic development was introduced by:
A) Thomas Hunt Morgan
B) Hans Spemann and Hilde Mangold
C) Ernst Haeckel
D) Karl Ernst von Baer
Q2. рднреНрд░реВрдг рд╡рд┐рдХрд╛рд╕ рдореЗрдВ 'рдкреНрд░рд╛рдердорд┐рдХ рдЖрдпреЛрдЬрдХ' (Primary Organizer) рдХреА рдЕрд╡рдзрд╛рд░рдгрд╛ рдХрд┐рд╕рдХреЗ рджреНрд╡рд╛рд░рд╛ рдкреЗрд╢ рдХреА рдЧрдИ рдереА?
A) рдереЙрдорд╕ рд╣рдВрдЯ рдореЙрд░реНрдЧрди
B) рд╣рдВрд╕ рд╕реНрдкрд░реНрдорди рдФрд░ рд╣рд┐рд▓реНрдбреЗ рдореИрдВрдЧреЛрд▓реНрдб
C) рдЕрд░реНрдирд╕реНрдЯ рд╣реЗрдХреЗрд▓
D) рдХрд╛рд░реНрд▓ рдЕрд░реНрдирд╕реНрдЯ рд╡реЙрди рдмреЗрдпрд░
Answer: (B)
Spemann and Mangold discovered the organizer effect in amphibian embryos.
рд╕реНрдкрд░реНрдорди рдФрд░ рдореИрдВрдЧреЛрд▓реНрдб рдиреЗ рдЙрднрдпрдЪрд░ рднреНрд░реВрдгреЛрдВ рдореЗрдВ рдЖрдпреЛрдЬрдХ рдкреНрд░рднрд╛рд╡ рдХреА рдЦреЛрдЬ рдХреАред
Q3. Which extra-embryonic membrane encloses the fluid that cushions the embryo against mechanical shocks?
A) Chorion
B) Yolk sac
C) Allantois
D) Amnion
Q3. рдХреМрди рд╕реА рдЕрддрд┐рд░рд┐рдХреНрдд-рднреНрд░реВрдгреАрдп рдЭрд┐рд▓реНрд▓реА рдЙрд╕ рджреНрд░рд╡ рдХреЛ рдШреЗрд░рддреА рд╣реИ рдЬреЛ рднреНрд░реВрдг рдХреЛ рдпрд╛рдВрддреНрд░рд┐рдХ рдЭрдЯрдХреЛрдВ рд╕реЗ рдмрдЪрд╛рддрд╛ рд╣реИ?
A) рдХреИрд░рд┐рдпреЛрди
B) рдпреЛрдХ рд╕реИрдХ
C) рдПрд▓реЗрдВрдЯреЛрдЗрд╕
D) рдПрдордирд┐рдпрди (Amnion)
Answer: (D)
The amnion contains amniotic fluid which acts as a shock absorber.
рдПрдордирд┐рдпрди рдореЗрдВ рдПрдордирд┐рдпреЛрдЯрд┐рдХ рджреНрд░рд╡ рд╣реЛрддрд╛ рд╣реИ рдЬреЛ рд╢реЙрдХ рдПрдмреНрдЬреЙрд░реНрдмрд░ рдХреЗ рд░реВрдк рдореЗрдВ рдХрд╛рд░реНрдп рдХрд░рддрд╛ рд╣реИред
Q4. The type of placenta found in human beings is:
A) Epitheliochorial
B) Endotheliochorial
C) Hemochorial
D) Syndeschorial
Q4. рдордиреБрд╖реНрдпреЛрдВ рдореЗрдВ рдкрд╛рдпрд╛ рдЬрд╛рдиреЗ рд╡рд╛рд▓рд╛ рдЕрдкрд░рд╛ (Placenta) рдХрд╛ рдкреНрд░рдХрд╛рд░ рдХреМрди рд╕рд╛ рд╣реИ?
A) рдПрдкрд┐рдереЗрд▓рд┐рдпреЛрдХреЛрд░рд┐рдпрд▓
B) рдПрдВрдбреЛрдереЗрд▓рд┐рдпреЛрдХреЛрд░рд┐рдпрд▓
C) рд╣реЗрдореЛрдХреЛрд░рд┐рдпрд▓
D) рд╕рд┐рдВрдбреЗрд╕реНрдХреЛрд░рд┐рдпрд▓
Answer: (C)
In humans, maternal blood comes in direct contact with the fetal chorion (hemochorial placenta).
рдордиреБрд╖реНрдпреЛрдВ рдореЗрдВ, рдорд╛рддреГ рд░рдХреНрдд рд╕реАрдзреЗ рднреНрд░реВрдг рдХреЗ рдХреИрд░рд┐рдпреЛрди (рд╣реЗрдореЛрдХреЛрд░рд┐рдпрд▓) рдХреЗ рд╕рдВрдкрд░реНрдХ рдореЗрдВ рдЖрддрд╛ рд╣реИред
Q5. During gastrulation, the central nervous system (CNS) develops from which germ layer?
A) Endoderm
B) Mesoderm
C) Ectoderm
D) Mesenchyme
Q5. рдЧреИрд╕реНрдЯреНрд░реБрд▓реЗрд╢рди рдХреЗ рджреМрд░рд╛рди, рдХреЗрдВрджреНрд░реАрдп рддрдВрддреНрд░рд┐рдХрд╛ рддрдВрддреНрд░ (CNS) рдХрд┐рд╕ рдЬрдирди рд╕реНрддрд░ (germ layer) рд╕реЗ рд╡рд┐рдХрд╕рд┐рдд рд╣реЛрддрд╛ рд╣реИ?
A) рдПрдВрдбреЛрдбрд░реНрдо
B) рдореЗрд╕реЛрдбрд░реНрдо
C) рдПрдХреНрдЯреЛрдбрд░реНрдо
D) рдореЗрд╕реЗрдирдХрд╛рдЗрдо
Answer: (C)
The brain and spinal cord are formed from the ectoderm.
рдорд╕реНрддрд┐рд╖реНрдХ рдФрд░ рд░реАрдврд╝ рдХреА рд╣рдбреНрдбреА рдПрдХреНрдЯреЛрдбрд░реНрдо рд╕реЗ рдмрдирддреА рд╣реИред
Q6. The ability of a single cell to divide and produce all the differentiated cells in an organism is called:
A) Totipotency
B) Pluripotency
C) Multipotency
D) Regeneration
Q6. рдЬреАрд╡ рдореЗрдВ рд╕рднреА рд╡рд┐рднреЗрджрд┐рдд рдХреЛрд╢рд┐рдХрд╛рдУрдВ рдХреЛ рд╡рд┐рднрд╛рдЬрд┐рдд рдХрд░рдиреЗ рдФрд░ рдЙрддреНрдкрдиреНрди рдХрд░рдиреЗ рдХреЗ рд▓рд┐рдП рдПрдХ рдХреЛрд╢рд┐рдХрд╛ рдХреА рдХреНрд╖рдорддрд╛ рдХреЛ рдХреНрдпрд╛ рдХрд╣рд╛ рдЬрд╛рддрд╛ рд╣реИ?
A) рдкреВрд░реНрдгрд╢рдХреНрддрддрд╛ (Totipotency)
B) рдкреНрд▓реБрд░рд┐рдкреЛрдЯреЗрдВрд╕реА
C) рдорд▓реНрдЯреАрдкреЛрдЯреЗрдВрд╕реА
D) рдкреБрдирд░реНрдЬрдирди
Answer: (A)
A zygote is a totipotent cell.
рдПрдХ рдпреБрдЧреНрдордирдЬ рдПрдХ рдкреВрд░реНрдгрд╢рдХреНрдд рдХреЛрд╢рд┐рдХрд╛ рд╣реИред

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