Enbryology MCQ Test - Zoology, Class 12 - Class 12 MCQ

Various changes in mammalian sperm which prepare it to fertilise the ovum are called : 

[UTTARANCHAL-2004]

In gastrulation, which is (are) formed :

[Jharkhand-2005]

During oogenis, the small structure separated from egg is :

[Jharkhand-2006]

Foetal sex is determined by examining cells from amniotic fluid looking for :

[Jharkhand-2004]

Which of the following is not correct for gastrulation:

[Jharkhand-2003]

In human foetus, the heart begins to beat at developmental age of :

[Jharkhand-2002]

Development of animal embryo from egg without fertilization is called :

[BIHAR-2004]

During embryonic development, endoskeleton and muscle develop from which germinal layer 

 [BIHAR-2006]

 In the development of a frog, the gastrulation process involves :

[UP CPMT-2001, RPMT 08]

Polar bodies are produced during the fomation of :

[UP CPMT-2001]

The part where fertilization of ovum occurs in placental mammals is :

[UP CPMT-2001]

In a vertebrate which germ layer forms the skeletal muscles :

[UP CPMT-2004]

Grey crescent in fertilized frog's egg is the area :

[UP CPMT-2006]

During embryonic development the establishment of polarity along anterio/posterior, dorsal/ventral or medial/lateral axis is called :

[UP CPMT-2005]

Liver and pancreas of frog and rabbit are derived from :

[UP CPMT-2006]

Which layer develops first during embryonic development :

[UP CPMT-2006]

Acrosome of spermatozoa is formed from :

[MP PMT-2004]

Frog's egg is :

[MP PMT-2006]

The whole nervous system including neuron in frog and other vertebrates is derived from :

[MP PMT-2006]

The cavity, which formed during gastrulation is named as :

[MP PMT-2007]

In a sperm, the mitochondria occur :

[MP PMT-2001]

Identical twins will be produced when :

[MP PMT-2001]

Which set of enzymes is found in the acrosome of mammalian spermatozoa :

[MP PMT-2001]

Fixing up of the blastocyst in the wall of the uterus is known as :

[MP PMT-2002]

The type of placenta fund in human beings is of type:

[MP PMT-2002]

The number of foetal membranes is man is :

[MP PMT-2002]

Placenta in human beings is formed by :

[MP PMT-2002]