101. After fertilization which changes prevents entry of other sperms in to the oocytes.
A. Egg membrane
B. Fertilization membrane
C. Vitelline membrane
D. (a) and (c) both
Answer : Option B
102. When fertilized ovum is convert into zygote ?
A. On entry of sperm in ovum
B. On entry of sperm in secondery pronucleus
C. On fusion of male and female pronucleus
D. After change into fertilization membrane
Answer : Option C
103. During movement of zygote into oviduct the division of zygote in 2 to 16 daughter cells. This process called
104. The division of it forms in to 16 daughter cells..called....
105. The embryo with 16 cells is called........
106. What time period is required to form blastocyst ?
107. The fluid within the blastocyst is formed by the cells of _______ ?
A. Blastomere
B. Trophoblast
C. Iner layer of blastocyte
D. None of this
Answer : Option B
108. Which cells secrete the enzymes for make implantation of embryo possible ?
A. Trophoblast
B. Blastomere
C. Outer layer of uterus
D. Outer layer of blastocyst
Answer : Option A
109. In human normally what is the period of pregnancy ?
110. The fertilized ovum during the first 12 weeks is called _______.