Difference between diploid and haploid?
It is said: haploid means a simple set of chromosomes But How can a set of chromosomes consist of individual chromosomes and not pairs of chromosomes?
From the germ cell to a double set of chromosomes?
Hey, I'm having trouble making progress in biology at the moment. Maybe someone can help me. Meiosis produces four haploid daughter cells, each with 23 single-chromatid chromosomes. During fertilization, the sperm and egg fuse. Then you'd actually have 46 single-chromatid chromosomes. But how does it happen that humans have a double set of chromosomes? A…
2n and 2CC difference (mitosis/meiosis)?
I know that 2n means diploid and 2CC means two-chromatid chromosomes. But I don't really understand what the difference is. Does it have something to do with male/female chromosomes (gonosomes)? Or does n mean pairs of chromosomes and not just individual chromosomes?
Why are triploid hybrids sterile?
Hey, the question is above. What can you tell me about this? • and one more thing: What would a drawing showing the course of meiosis starting from a triploid germ cell with 3n = 6 chromosomes look like? LG
Why can no living organism develop without meiosis?
So, meiosis turns a 2n set of chromosomes into a 1n set, so the zygote has 46 chromosomes, but why does it have to have exactly 46? Why can't the zygote have 92 and the children after it have 184, and so on? I hope you understand my question.