List of top Zoology Questions

Match the following:

Method of sex determination

  • A) XX – XY
  • B) XX – XO
  • C) ZW – ZZ
  • D) ZZ – ZO

Example

  • I) Grasshoppers
  • II) Birds
  • III) Human beings
  • IV) Moths
  • V) Honey bees

Identify the correct match:

Study the following and pick up the correct statements:
In DNA fingerprinting, DNA is cut into small pieces at specific sites by restriction endonucleases.
Transfer of DNA strands on to the nylon membrane is called southern blotting.
The largest known human gene codes for the protein dystrophin.
Least number of genes are located in Y-chromosome.
Statement-I: Areolar tissue forms supporting framework for lymphoid organs.
Statement-II: Reticular tissue forms the packing tissue in almost all organs.
Parasite that causes African sleeping sickness:
Following are different stages in blood clotting. Arrange them in correct sequence:
[I)] Activation of prothrombin
[II)] Formation of prothrombin activator
[III)] Conversion of fibrinogen into soluble fibrin
[IV)] Clot retraction
[V)] Conversion of soluble fibrin into insoluble fibrin threads

Study the following and pick up the correct combinations

S.No.GroupSalient FeatureExample
IAvesPneumatic bonesColumba
IIMammaliaCorpus callosumMacaca
IIIReptiliaEpidermal scalesCalotes
IVChondrichthyesCartilagenous skeletonScoliodon
Ontogeny repeats phylogeny. It was the
The measurement of the overall diversity for different ecosystems within an ecological region is
Statement-I: In articular cartilages, perichondrium is present.
Statement-II: Intervertebral discs contain fibrous cartilage.
Identify the correct option from the following:
In cockroach, thermoreceptor sensillae are located on
Number of flagella in Giardia
S.No.Cranial nervesArises from ...Ends in ...
I.Olfactory nervesOlfactory epithelium of nasal chambersTemporal lobes of cerebrum
II.Optic nervesRetina of eyesCerebellum
III.Auditory nervesInternal earsCerebrum
IV.Pathetic nerves Floor of mid brainSuperior oblique muscle of eye ball

                                                                  Table 1: List of Cranial Nerves: Their Origins and End Points

Study the following statements and pick up the incorrect statements.
I. Oriented locomotor movement of an organism towards or away from the direction of light is called photokinesis.
II. The influence of light on non-directional movement of organisms is called phototaxis.
III. UV-B and UV-C rays are more harmful than UV-A rays.
IV. Photoperiod influences the migration of birds.
Which of the following is an intra uterine device (IUD)?
Statement-I: In cockroach, mycetocytes of fat bodies secrete fats.
Statement-II: Haemocytes in cockroach are phagocytic.
In these leucocytes, nucleus is kidney shaped.

Flagellum in Paramecium is of this type
 

Somatostatin is secreted by
Study the following statements and pick up the incorrect statements.
I. Haemophilia is an X-linked disorder due to dominant genes.
II. Inheritance of colour blindness follows the cris-cross pattern.
III. Haemophilia A and Haemophilia C are X-linked disorders.
IV. Y-linked genes are called holandric genes.
Assertion (A): In the polluted area, Birmingham, black peppered moths were abundant. In the non-polluted area, Dorset, grey forms were abundant.
Reason (R): Natural selection.
Identify the correct option from the following

Match the following hormones with their corresponding disorders:

HormoneDisorder
A) ThyroxineI. Addison's disease
B) VasopressinII. Diabetes mellitus
C) GlucocorticoidsIII. Acromegaly
D) SomatotropinIV. Myxedema
 V. Diabetes insipidus

Assertion (A): Binary fission in Euglena is called symmetrogenic division.
Reason (R): Plane of fission in Euglena is at right angles to the longitudinal axis of the body.
 

Match the following: Stem cell types and Examples

List - I List - II 
A)TotipotentI)Haemopoietic stem cells
B)PluripotentII)Zygote
C)MultipotentIII)Basophil progenitor cells
D)UnipotentIV)Inner cell mass of blastocyst
Pick up the wrongly matched pair

Match the following:

List - I List - II 
A)Thyroid glandI)Calcitonin
B)Adrenal medullaII)Nor epinephrine
C)Pineal glandIII)Melatonin
D)PancreasIV)Glucagon