Haploid organisms develop from unfertilized eggs. Diploid cells have 46 chromosomes in humans. Haploid cells have 23 chromosomes in humans. Diploid cells are important for the growth and development of organisms.

Explanation:

Hope this helps!

If you get it right can you please

give me brainliest?

8 0

3 years ago

3. What is crossing over? When does it occur during meiosis? Why did you have difficulty modeling this element of meiosis using

FrozenT [24]

Crossing over happens in Meiosis 1 only. In Prophase 1 a cells chromatin (chromatin = chromosomes that have not condensed yet) condense and pair up forming homologous chromosomes (paired = XX (2 chromosomes together)). When this happens segments/ alleles of the chromosomes pairing up swap over. This creates genetic diversity as each chromosome is different, it has parts from its pair. This leaves every chromosome unique and individual.

I hope this helps, sorry some of the vocab is rather technical. By the way I would suggest watching the 'Crash Course: Meiosis' on YouTube, this really helped me when I was learning this topic. :D

5 0

3 years ago

Read 2 more answers