
Fill in the blank with the correct option given in the bracket.
The set of basic chromosomes present in an organism is called
(monosomy/monoploidy).

Important Questions on Inheritance and Variation



Match the following lists:
List | List | ||
A) | Change in single base pair of DNA | Recombination | |
B) | Deletions of base pairs of DNA | Genetic map | |
C) | Generation of non-parental gene combination | Point mutations | |
D) | The frequency of recombination between gene pairs on the same chromosome | Frame-shift mutations |
The correct match is


Match List - I with the List - II.
List - I | List - II | ||
(a) | Metacentric chromosome | (i) | Centromere situated close to the end forming one extremely short and one very long arms |
(b) | Acrocentric chromosome | (ii) | Centromere at the terminal end |
(c) | Sub-metacentric | (iii) | Centromere in the middle forming two equal arms of chromosomes |
(d) | Telocentric chromosomes | (iv) | Centromere slightly away from the middle forming one shorter arm and one longer arm |
Choose the correct answer from the options given below:




Fill up the blanks with suitable words, respectively.
Each chromosome has a ____ or _____ on the sides, disc shaped structure is called _____. The _____ chromosome has two equal arms, ____ chromosome has one shorter and one long arm. _____ chromosome has no second arm. The secondary constriction develop small fragment called ______
A) metacentric
B) telocentric
C) centromere
D) primary constriction
E) submetacentric
F) satellite
G) kinetochore

Identify the part labelled as ‘’ in the diagram given below:










