ANIMAL REPRODUCTION AND DEVELOPMENT
EMBRYONIC DEVELOPMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It forms into a blastocyst
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It is an unfertilized egg
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It produces haploid male gametophytes
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It is made up of only one cell
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Detailed explanation-1: -Pregnancy week by week During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches the uterus, the morula becomes a blastocyst.
Detailed explanation-2: -A zygote is a cell formed by the union of the ovum (i.e., egg cell) or the female gamete, and the sperm or the male gamete. It contains the DNA from both its parents. The zygote then multiplies and develops through the process of cell division to form the embryo.
Detailed explanation-3: -From Egg to Embryo First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst. Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.
Detailed explanation-4: -During fertilization, the final stages of meiosis occur in the ovum. Zygote undergoes mitosis and becomes a blastocyst.