Fertilizin
Antifertilizin
Agglutin
Antiagglutinin
A. Fertilizin
Cystic fibrosis
Thalassaemia
Haemophilia
Cretinism
Fertilization -> zygote -> cleavage -> morula -> blastula -> gastrula
Fertilization -> zygote -> cleavage -> blastula -> morula -> gastrula
Fertilization -> zygote -> cleavage -> morula -> blastula -> gastrula
Fertilization -> zygote -> gastrulae -> morula -> blastula -> cleavage
Karyotype
Genotype
Phenotype
Cytogenetics
Cells of corona radiata trap all the sperm except one
Only two sperms nearest to ovum penetrate zona pellucida
Secretion of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida
All sperms except the one nearest to ovum lose their tails
Lh
Estrogen
Progesterone
Fsh
10 th day
14 th day
7 th day
3 rd day
Rh -ve female and rh+ ve male
Rh+ ve female and rh -ve male
Rh+ ve female and rh+ ve male
Rh~ ve female and rh -ve male
Seminiferous tubules
Ovaries
Prostate gland
Semen
Shock
Abortion
Degeneration
Disease
40 to 300 million per ml
10 to 20 million per ml
< 10 million per ml
200 million per ml
Plagiocephaly
Craniostenosis
Anencephaly
Microcephaly
Tyrosinase
Xanthine oxidase
Catalase
Fructokinase.
meiosis
Mitosis
Cleavage
Differentiation
GIFT
ZIFT
ICSI
IUI
Frondosum
Capsularis
Parietalis
Basalis
Only trophoblast
Only allantois
Trophoblast and mesoderm
Trophoblast and mesoderm and allantois
10 weeks
12 weeks
20 weeks
22 weeks
Diploid spermatozoan with diploid ovum to form diploid zygote
Haploid spermatozoan with diploid ovum to form diploid zygote
Diploid spermatozoan with haploid ovum to form diploid zygote
Haploid spermatozoan with haploid ovum to form diploid zygote
1.5 -3.0 mm/min
1.5 - 3.0 cm/min
1.5 -3.0 m/min
1.5 -3.0 m/hr
Trisomy of 21st chromosome
Fertilization of an xx egg by a normal y-bearing sperm
Loss of half of the short arm of chromosome 5
Loss of half of the long arm of chromosome 5
A AND B
A AND A
AB AND O
B AND O
A long coiled tube between vasa efferentia and vas deferens
Network of sinuses between seminiferous tubules and efferentia
Connection between vas deferens and seminal vesicle
Intermediate structure between the testis and vasa efferentia
25 % abnormal forms
60% motility after 3 hours
Mild Alkaline reaction
Sperm count of 17 million per ml.
FSH
TSH
ICSH
ACTH
Corona radiata, zona pellucida, vitelline membrane
Zona pellucida, corona radiata, vitelline membrane
Vitelline membrane, zona pellucida, corona radiata
Zona pellucida, vitelline membrane, corona radiate
Uriniferous tubules
Malpighian tubules
Seminiferous tubules
Acini or lobules
Scrotum
Ericardium
Placenta
Amniotic sac
At the end of proliferative phase
At the beginning of proliferative phase
Before the end of secretary phase
In the middle of secretary phase
Luteal phase
Follicular phase
Fertilization
Implantation
Prevent ovulation
Suppress sperm motility
Prevents implantation of embryo
Kills sperms