Worksheet 12
Reproduction in human
, Biology IGCSE 0610 Paper 4 Reproduction
22 May/ June 2019 Syllabus-0610 Paper 42
Testosterone
By producing sperm
Hormones
Testes, sperm duct,epidydimis,bladder
Urethra
Excretory system
Yes!!! Urethra is an organ
FSH,
Insulin & glucagon LH,oestrogen,
Pancreas progesterone
Digestive system Pancreatic juices
Or
Ovary Produce egg
Female reproductive system
Dr.Nihal Gabr
, Biology IGCSE 0610 Paper 4 Reproduction
Meiosis is a reduction division that halves/reduces the number of
chromosomes from diploid 46 to haploid 23 producing genetically different
daughter cells that are male gametes. It allows more variation upon fertilisation
and ensure restoring the diploid number of chromosome (46) upon fertilization in
zygote. Maintaining genetic stability
Dr.Nihal Gabr
Reproduction in human
, Biology IGCSE 0610 Paper 4 Reproduction
22 May/ June 2019 Syllabus-0610 Paper 42
Testosterone
By producing sperm
Hormones
Testes, sperm duct,epidydimis,bladder
Urethra
Excretory system
Yes!!! Urethra is an organ
FSH,
Insulin & glucagon LH,oestrogen,
Pancreas progesterone
Digestive system Pancreatic juices
Or
Ovary Produce egg
Female reproductive system
Dr.Nihal Gabr
, Biology IGCSE 0610 Paper 4 Reproduction
Meiosis is a reduction division that halves/reduces the number of
chromosomes from diploid 46 to haploid 23 producing genetically different
daughter cells that are male gametes. It allows more variation upon fertilisation
and ensure restoring the diploid number of chromosome (46) upon fertilization in
zygote. Maintaining genetic stability
Dr.Nihal Gabr
