What would the chromosome to the right be called?

The two identical chromosomes that result from DNA replication are referred to as sister chromatids. Sister chromatids are held together by proteins at a region of the chromosome called the centromere. Chromosomes undergo additional compaction at the beginning of mitosis.

Explanation:

Based on the position of centromere and length of chromosomal arms, the chromosomes are classified into 4 groups:

(1). Telocentric chromosomes.

(2). Acrocentric chromosomes.

(3). Sub-metacentric chromosomes.

(4). Metacentric chromosomes.

b) the inside picture would look at a very high temperature in a very low ph