Which type of chromosome has the centromere located at the terminal end?

Which of the following structures was discovered by Balbiani?

$DNA$ is found in which of the following?

Read the following statements $:-$
$(i)$ Centromere is present in the middle of the chromosomes and forms two equal arms.
$(ii)$ Chromosome has a terminal centromere.
$(iii)$ Centromere lies close to the end of the chromosome forming one extremely short and one very long arm.
$(iv)$ Centromere lies slightly away from the middle of the chromosome resulting in one shorter arm and one longer arm.
Select the correct option as per the codes given below $:-$

Chromosomes having equal or almost equal arms are called

The nucleoplasm is continuous with the cytoplasm of a cell through