Disc-shaped proteinaceous structure associated with centromere is called

1. Kinetochore

2. Secondary constriction

3. Both Primary and Secondary constriction

4. Nucleolar organizer

Which of the following organelles contain DNA?

(i) Mitochondria (ii) Chloroplasts (iii) Golgi bodies (iv) Ribosomes

(1) (i) and (ii)

(2) (ii) and (iii)

(3) (i) only

(4) (iv) only.

Which of the following is true about chromosome

1. nucleoprotein

2. 23 pairs in single human diploid cell

3. Contains primary constriction

4. All of these

Few chromosome have non-staining secondary constrictions at a constant location, also known as :-

1. Cristae 

2. Satellite

3. Kinetochores 

4. Hub

Match the columns and identify the correct option. 

1. A → (iv), B → (iii), C → (i), D → (ii)

2. A → (iii), B → (iv), C → (i), D → (ii)

3. A → (iii), B → (i), C → (iv), D → (ii)

4. A → (iii), B → (iv), C → (ii), D → (i)

Chromatin can be stained with

1. Basic dyes

2. neutral dyes

3. acidic dyes

4. Crystal violet

A chromosome carrying the centromere at one of the ends is called

1. acentric

2. submetacentric

3. telocentric

4. metacentric.

Chromatin contains

Select the correct match

1.  70 'S' ribosome         -    Bacterial mesosome

2.  Cytoskeleton             -    Lipoproteins

3.  Kinetochore                -    Centromere

4.  Lysosome                  -   Catalase

The chromosomes in which centromere is situated close to one end are

1. metacentric               

2. acrocentric

3. telocentric                 

4. sub-metacentric