1. What percentage of sperm cells carry an X chromosome? 2. What percentage of sperm cells carry a Y chromosome? 3. What percentage of egg cells carry an X chromosome? 4. How many chromosomes are shown on a normal human karyotype? 5. How can a karyotype be used to compare normal humans to those with chromosomal abnormalities​

How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.