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Download PDF – 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. उभयचर (amphibian) के अंडों में, विदलन (cleavage) कैसा होता है?
A) होलोब्लास्टिक समान
B) होलोब्लास्टिक असमान
C) मेरोब्लास्टिक
D) सतही (Superficial)
Answer: (B)
Frog eggs have a moderate amount of yolk at the vegetal pole, causing complete but unequal cleavage.
मेंढक के अंडों में वनस्पति ध्रुव पर योक होता है, जिससे पूर्ण लेकिन असमान विदलन होता है।
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. भ्रूण विकास में 'प्राथमिक आयोजक' (Primary Organizer) की अवधारणा किसके द्वारा पेश की गई थी?
A) थॉमस हंट मॉर्गन
B) हंस स्पर्मन और हिल्डे मैंगोल्ड
C) अर्नस्ट हेकेल
D) कार्ल अर्नस्ट वॉन बेयर
Answer: (B)
Spemann and Mangold discovered the organizer effect in amphibian embryos.
स्पर्मन और मैंगोल्ड ने उभयचर भ्रूणों में आयोजक प्रभाव की खोज की।
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. कौन सी अतिरिक्त-भ्रूणीय झिल्ली उस द्रव को घेरती है जो भ्रूण को यांत्रिक झटकों से बचाता है?
A) कैरियोन
B) योक सैक
C) एलेंटोइस
D) एमनियन (Amnion)
Answer: (D)
The amnion contains amniotic fluid which acts as a shock absorber.
एमनियन में एमनियोटिक द्रव होता है जो शॉक एब्जॉर्बर के रूप में कार्य करता है।
Q4. The type of placenta found in human beings is:
A) Epitheliochorial
B) Endotheliochorial
C) Hemochorial
D) Syndeschorial
Q4. मनुष्यों में पाया जाने वाला अपरा (Placenta) का प्रकार कौन सा है?
A) एपिथेलियोकोरियल
B) एंडोथेलियोकोरियल
C) हेमोकोरियल
D) सिंडेस्कोरियल
Answer: (C)
In humans, maternal blood comes in direct contact with the fetal chorion (hemochorial placenta).
मनुष्यों में, मातृ रक्त सीधे भ्रूण के कैरियोन (हेमोकोरियल) के संपर्क में आता है।
Q5. During gastrulation, the central nervous system (CNS) develops from which germ layer?
A) Endoderm
B) Mesoderm
C) Ectoderm
D) Mesenchyme
Q5. गैस्ट्रुलेशन के दौरान, केंद्रीय तंत्रिका तंत्र (CNS) किस जनन स्तर (germ layer) से विकसित होता है?
A) एंडोडर्म
B) मेसोडर्म
C) एक्टोडर्म
D) मेसेनकाइम
Answer: (C)
The brain and spinal cord are formed from the ectoderm.
मस्तिष्क और रीढ़ की हड्डी एक्टोडर्म से बनती है।
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. जीव में सभी विभेदित कोशिकाओं को विभाजित करने और उत्पन्न करने के लिए एक कोशिका की क्षमता को क्या कहा जाता है?
A) पूर्णशक्तता (Totipotency)
B) प्लुरिपोटेंसी
C) मल्टीपोटेंसी
D) पुनर्जनन
Answer: (A)
A zygote is a totipotent cell.
एक युग्मनज एक पूर्णशक्त कोशिका है।

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