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Help me please, The shorter and longer arm of a sub-metacentric chromosomes are referred as:

The shorter and longer arm of a sub-metacentric chromosomes are referred as:

 

  • Option 1)

    s- arm and l-arm respectively

  • Option 2)

    p - arm and q- arm respectively

  • Option 3)

    q- arm and p - arm respectively

  • Option 4)

    m - arm and n - arm respectively

Answers (1)
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Types of chromosomes -

Based on the position of centromere, the chromosomes can be classified into four types:

1) Metacentric chromosome- middle centromere forming two equal arms.

2) Sub-metacentric- centromere slightly away from the center.

3)Acrocentric- centromere is situated close to its end 

4)Telocentric- terminal centromere

 

- wherein

 

 

In submetacentric chromosomes the centromere is palced at submedian. The arms become unequal in length. The short arm is called the p- arm and the long one is called q-arm.

 


Option 1)

s- arm and l-arm respectively

Option 2)

p - arm and q- arm respectively

Option 3)

q- arm and p - arm respectively

Option 4)

m - arm and n - arm respectively

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