What are sister chromatids

Question

it says that in meiosis cell division the chromosomes line up with its sister chromatic.

So what is a sister chromatic, do sisters have the same DNA. I am not sure because it didn't really explain

Answer 1

has same gene because gene in first step of meiosis1 get duplication and has 2 sister chromatid  and has same gene  and two sister are same

Answer 2

human cells (aside from gametes) are diploid. Thus they have 2 sets of 23 chromosomes. The sister chromosome is the identical chromosome. Like a twin

Answer 3

near the beginning of meiosis, chromosomes split into sister chromatids, which each have the same number of genes; they are bsically identical to each other

Answer 4

A chromosome is made of 2 DNA molecules packaged into 2 chromatids joined by a centromere - these are called sister chromatids and are identical. When 2 cells are made after mitosis each contains one chromatid from each chromosome and are thus genetically the same with the same DNA.