Biochemistry

VARIETY OF LIFE

Q1)  Any attribute or descriptive phrase, referring to form, structure or behaviour of a specific organism for a particular purpose is:

A) Expression

B) Specificity

C) Character

D) Nature

E) None of the above

Q2) Which one of the following is an example of “Expression of character”?

A) Petal length

B) Stem thickness

C) Corolla colour

D) Sepals colour green

E) Leaf shape

Q3) Living organisms having fundamental similarity in their structure are studied under:

A) Biochemistry

B) Anatomy

C) Homology

D) Heterology

E) Cytology

Q4) From evolutionary point of view, flipper and wing are believed to resemble human:

A) Hand

B) Foot

C) Fingers

D) Arm

E) Leg

Q5) Concerning homology, which one of the following statement is correct?

A) Structurally, dissimilar organisms are studied

B) Homology refers to gross structures alone

C) Homology also refers to chromosome numbers and types

D) Structure and functions are not always closely related to physiological homologies

E) Structure and function similarities must be present for a structure to be homologous

Q6) Concerning classification of living organisms, which statement is correct?

A) The final tool helping in classifying organisms is Genetics.

B) Microscopic structure cannot be useful at the genetic and species level.

C) It is impossible to compare amino acid sequence in the proteins of different organisms even by using chromatographic & electrophoresis techniques.

D) DNA base sequence study is not an important tool for classifying organism.

E) None of the above

Q7) The basic unit of biological classification is:

A) kingdom

B) Genus

C) Family

D) Species

E) Order

Q8) A group of organisms which have numerous physical feature in common and which are capable of interbreeding to produce fertile offspring is:

A) Species

B) Genus

C) Family

D) Class

E) Order

Q9) Closely related species are grouped together into:

A) Phyla

B) Genus

C) Family

D) Order

E) Class

Q10) Families are grouped into:

A) Genera

B) Orders

C) Species

D) Kingdoms

E) Phyla  

Q11) Genera are grouped into:

A) Species

B) Orders

C) Families

D) Kingdoms

E) Sub-phyla

Q12) Orders are grouped into:

A) Genera

B) Families

C) Species

D) Classes

E) Phyla

Q13) Classes are grouped into:

A) Genera

B) Orders

C) Species

D) Kingdom

E) Phyla

Q14) Phyla are grouped into:

A) Genera

B) Orders

C) Classes

D) Kingdom

E) Families

Q15) When classifying plants and bacteria, which term is used instead of phylum?

A) Class

B) Sub-class

C) Division

D) Sub-phylum

E) No other terminology is used

Q16) Sub-phylum is an intermediate category which may be inserted between:

A) Phylum and Family

B) Phylum and Genus

C) Phylum and Species

D) Phylum and Order

E) Phylum and Class

Q17) Sub-class is an intermediate category which may be inserted between:

A) Class and Kingdom

B) Class and Genus

C) Class and Species

D) Class and Order

E) Class and Phylum

Q18) Concerning classification of Housefly, choose the correct match:

A) Kingdom  ………. Arthropoda

B) Class ………. Arthropoda

C) Class ………. Insecta

D) Class ………. Diptera

E) Family ………. Musca domestica

Q19)  Concerning classification of wheat, choose the correct match:

A) Kingdom  ………. Tracheophyta

B) Class ………. Monocotyledonae

C) Class ………. Tracheophyta

D) Class ………. Triticum

E) Family ………. Poales

Q20) The names of the four highest taxa are:

A) Kingdom → Class → Genus → Species

B) Kingdom → Species → Order → Family

C) Kingdom → Phylum → Class → Order

D) Kingdom → Phylum → Family → Order

E) Kingdom → Family → Order → Genus

Answers

  1. Character
  2. Sepals colour green
  3. Homology
  4. Arm
  5. Homology also refers to chromosome numbers and types
  6. The final tool helping in classifying organisms in Genetics
  7. Species
  8. Species
  9. Genus
  10. Orders
  11. Families
  12. Classes
  13. Phyla
  14. Kingdom
  15. Division
  16. Phylum and Class
  17. Class and Order
  18. Class ………. Insecta
  19. Genus ………. Triticum
  20. Kingdom → Phylum → Class → Order

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