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प्रश्न
Choose the incorrect statement from the following.
पर्याय
Polyspermy is prevented by the chemical changes in the egg surface
In the human female implantation occurs almost seven days after fertilisation
Colostrum contains antibodies and nutrients
In birds and mammals internal fertilisation takes place
उत्तर
Polyspermy is prevented by the chemical changes in the egg surface
APPEARS IN
संबंधित प्रश्न
Briefly explain the events of fertilisation and implantation in an adult human female.
The zygote divides to form __________ which is implanted in uterus.
Name the hormones secreted and write their functions : during Follicular phase and parturition.
State three functions of the placenta
Answer the following question.
Name the embryonic stage that gets implanted in human females. Explain the process of implantation.
Match the following and choose the correct options:
| A. | Trophoblast | i. | Embedding of blastocyst in the endome |
| B. | Cleavage | ii. | Group of cells that would differentiate as embryo |
| C. | Inner cell mass | iii. | Outer layer of blastocyst attached to the endometrium |
| D. | Implantation | iv. | Mitonic division of zygote |
What is true about cleavage in fertilized egg of human?
What is true for cleavage?
The sperms undergo physiological maturation, acquiring increased motility and fertilising capacity in ______.
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to pregnancy.
The Site of implantation is ______
