1 |
The individuals who born with abnormal organs or body parts is called. |
Malformed
Malignant
Malignant
Malfunction
|
2 |
Environmental factors causing abnormal development are grouped together as. |
Toxins
Carcinogens
Teratogens
Mutagens
|
3 |
Branch of biology which deals with the study of abnormal development and their cause is called. |
Embryology
Teratology
Gerontology
Microcephaly
|
4 |
The unspecialized cells present in flatworm and Planaria are. |
Neoblast
Osteoblast
Osteoclast
Chondrocyte
|
5 |
Unspecialized cells, neoblast are always present in body of. |
Salamander
Planaria
Lizard
Newt
|
6 |
The human life is judged to be maximum of. |
60-70 years
70-100 years
120 -175 years
130-135 years
|
7 |
Study of aging is called |
Teratology
Gerontology
Cell biology
Paleontology
|
8 |
In ascidian fertilized egg, yellow cytoplasm gives rise to |
Larval epidermis
Muscle cells
Notochord
Gut
|
9 |
Clear cytoplasm produces. |
Muscle cells
Gut
Larval epidermis
Notochord
|
10 |
Gray vegetal cytoplasm gives rise to. |
Gut
Muscle cells
Notochord
Larval epidermis
|
11 |
Acetabularia is a |
Epiphyte
Alga
fungus
Angiosperm
|
12 |
Clear cytoplasm, in an ascidian zygote produces. |
Muscle
Gut
Notochord and neural tube
Larval epidermis
|
13 |
The pigment free area that appears at the time of fertilization is called. |
embryo
Gray crescent
Yolk
White cytoplasm
|
14 |
The discoidal cap of cells above the blastocoel is called. |
Ectoderm
Endoderm
Mesoderm
Blastoderm
|
15 |
Neural plate is formed from |
Ectoderm
Endoderm
Mesoderm
Notochord
|
16 |
Hatching period of chick is. |
15 days
18 days
21 days
28 days
|
17 |
During gastrulation the blastoderm splits into two layers, an upper layer of cells is called. |
Hypoblast
Area pellucida
Epiblast
Area Opaca
|