General Science/Basic Science Embryology Fertilization Sample Test,Sample questions

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Question: 
.The process of fusion of male and female nuclei is known as

1.Amphimixis

2.Apomixis

3.Paramixis

4.Perimixis

Question: 
By what process fertilizing molecules causes the clumping of sperms during fertilization

1.Rheotaxis

2.Thigmotaxis

3.Chemotaxis

4.Phototaxis

Question: 
During activation which parts of the sperm enter through the fertilization cone

1.Entire sperm

2.Nucleus only

3.Middle piece only

4.Both nucleus and middle piece

Question: 
During fertilization polyspermy is prevented by

1.Fertilizing

2.Anti fertilizing

3.Spermlysin

4.Fertilization membrane

Question: 
External fertilization is common in

1.Terrestrial animals

2.Aquatic animals

3.Oviparous animals

4.Viviparous animals

Question: 
Fertilization cone is formed during the

1.Meeting of the gametes

2.Penetration of the sperm

3.Activation of the egg

4.Amphimixis

Question: 
Fertilization cone is formed from the

1.Sperm cytoplasm

2.Egg cytoplasm

3.Sperm nucleus

4.Egg nucleus

Question: 
Fertilization membrane is formed form the

1.Cell membrane

2.Cell wall

3.Plasma membrane

4.Vitelline membrane

Question: 
Fertilization membrane is formed to

1.Protect the ovum from shock

2.Protect the inclusion of many ova

3.Protect the ovum from radiation

4.Protect polyspermy

Question: 
In mammals egg follicular cells are held together by a substance called

1.Malonic acid

2.Malic acid

3.Hyaluronic acid

4.Fumeric acid

Question: 
Perivitelline space is formed between

1.Cell wall and vitelline membrane

2.Plasma membrane and vitelline membrane

3.Plasma membrane and fertilization membrane

4.Fertilization membrane and vitelline membrane

Question: 
Sperm produces lytic substance called

1.Hyaloplasm

2.Hyaluronidase

3.Hyaluronic acid

4.Hyalonema

Question: 
The angle of rotation of the egg in fertilization is

1.180 cel

2.90 cel

3.120 cel

4.360 cel

Question: 
The enzymes secreted by the sperm to penetrate the egg membrane is

1.Exopeptidase

2.Succinic dehydrogenase

3.Hyaluronidase

4.Carbonic anhydrase

Question: 
The fertilization membrane is formed by

1.The cortex of the cytoplasm

2.The fusion of cortical granules with inner surface of the membrane

3.The fusion of cortical granules with outer surface of the membrane

4.The fusion of inner surface of the membrane with the outer surface of the membrane

Question: 
The function of fertilization membrane is to

1.Protect the egg

2.Prevent the entrance of other sperm into ovum

3.Attract the sperm

4.Secrete fertilizing

Question: 
The lytic enzymes called hyaluronidase is found in the

1.Amphioxus egg

2.Frog�s egg

3.Reptilian egg

4.Mammalian egg

Question: 
The lytic substance produced by sperm to dissolve the egg membrane in mammal is membranes is

1.Enterokinase

2.Hyaluronidase

3.Carbonic anhydrase

4.Lipase

Question: 
The membrane which is helpful in avoiding the entry of man poly sperm is

1.Vitelline membrane

2.Perivitelline membrane

3.Fertilization membrane

4.Plasma membrane

Question: 
The term amphimixis refers to the5.

1.Mixing of maternal and paternal cytoplasm

2.Joining of cell membranes of sperm and egg

3.Mixing of paternal and maternal chromosomes

4.Fusion of male centriole and female centriole

Question: 
Which causes the clumping of sperms over the egg surface

1.Fertilizing

2.Luciferin

3.Anti fertilizing

4.Zymogen

Question: 
Which of the following show the external fertilization

1.Fishes

2.Reptiles

3.Birds

4.Mammals

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