Behaviour and Structure of chromos ; confused (1 Viewer)

[aNg3L_iReNe]

hello peoples;


For this dotpoint

Explain the relationship between the structure and behaviour of chromosomes during meiosis and the inheritance of genes

What kind of tings do i need to talk about ???
.... i know it has something to do wiht the random assortment of genes or sumthing on those lines ... *confused*


thankzz

 

[Tommy_Lamp]

Chromosomes are made of DNA which forms genes. During division each chromosome makes a complete copy of itself. The new chromosome is attached to the original chromosome by a centromere. In the initial division of meiosis the homologous chromosomes line up with the matching pair and one of each pair of homologous chromosomes moves into a new cell. Next the duplicated chromosomes separate resulting in four sex cells that contain half the chromosome number.
The genes are located on the chromosomes. They are duplicated during the first stage of meiosis and are then randomly assorted depending on which chromosomes enters which new haploid cell during the first and second division.

 

[xiao1985]

maybe also talk abt crossing over, where the genes are randomly assorted... this helps explain linked genes...