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प्रश्न
Choose the incorrect statement from the following.
विकल्प
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
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संबंधित प्रश्न
Name the stage of human embryo at which it gets implanted.
Where does fertilization occur in humans? Explain the events that occur during this process.
Fertilisation takes place in __________.
Name the hormones secreted and write their functions : during Follicular phase and parturition.
Name the stages in a human female where Corpus luteum and placenta co-exist.
Explain the process of fertilisation and implantation in humans.
During cleavage, what is true about cells?
Termination of gastrulation is indicated by ______.
Which of the following hormones prepares the uterus for implantation?
The finger-like projections that appear on the trophoblast following implantation, are called chorionic villi.
