Question # 1

During elongation, the cell volume increase upto.

Choose an answer

50 fold

100 fold

150 fold

200 fold

Movement of rearrangement of the cells in the embryo is called.

Choose an answer

Cleavage

Gastrulation

Fertilization

Organogenesis

Hypoblast is mainly presumptive

Choose an answer

Endoderm

Mesoderm

Ectoderm

Blastoderm

Environmental factors causing abnormal development are grouped together as.

Choose an answer

Toxins

Carcinogens

Teratogens

Mutagens

During gastrulation the blastoderm splits into two layers, an upper layer of cells is called.

Choose an answer

Hypoblast

Area pellucida

Epiblast

Area Opaca

Gray vegetal cytoplasm gives rise to.

Choose an answer

Gut

Muscle cells

Notochord

Larval epidermis

If lobster loses its pincer claw a new claw

Choose an answer

Regenerates

Never develops

IS ready

None of these

Cambium is formed in stage.

Choose an answer

One

Two

Three

Four

Young tissues retaining the potential to divide.

Choose an answer

Meristem

Xylem

Phloem

Cork

Which prosess is characterized by movement and rearrangement of cells in the embryo

Choose an answer

Blastulation

None of these

Neurulation

Gastrulation

In ascidian fertilized egg, yellow cytoplasm gives rise to

Choose an answer

Larval epidermis

Muscle cells

Notochord

Gut

A plant has a growth pattern called

Choose an answer

Open growth

Closed growth

Round growth

Branch of biology which deals with the study of abnormal development and their cause is called.

Choose an answer

Embryology

Teratology

Gerontology

Microcephaly

The individuals who born with abnormal organs or body parts is called.

Choose an answer

Malformed

Malignant

Malfunction

Primary growth in plants is caused by.

Choose an answer

Apical meristem

Intercalary meristem

Lateral meristem

Rib meristem

In chordates the healing of fracture and repair of a skin wound are some other examples of

Choose an answer

Reformation

Regeneration

Rejuvenation

Renaissance

Primary tissue is added by the

Choose an answer

Lateral meristem

Underground meristem

Apical meristem

Vertical meristem

For maximum growth the optimum temperature is 25 - 30^oC and it least at

Choose an answer

1 - 3^oC

5 - 10^oC

4 - 8^oC

6 - 12^oC

More Classes

Other Links

Biology FSC Part 2 Chapter 19 Online MCQ's Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer