Question

The attachment of developing embryo to the uterus of mother to obtain nutrition is called:

• A. Fertilization
• B. Implantation
• C. Cleavage
• D. Amplification

Answer 1

The correct option is B Implantation

Implantation is the stage of pregnancy at which the embryo adheres to the wall of the uterus. At this stage of prenatal development, the conceptus is called a blastocyst. It is by this adhesion that the embryo receives oxygen and nutrients from the mother to be able to grow.

The process of fertilization involves a sperm fusing with an ovum. The sperm plasma then fuses with the egg's plasma membrane, triggering the sperm head to disconnect from its flagellum as the egg travels down the fallopian tube to reach the uterus.

Cleavage is the division of cells in the early embryo. The process follows fertilization, with the transfer being triggered by the activation of a cyclin-dependent kinase complex.

Amplification is a process by which a nucleic acid molecule is enzymatically copied to generate a progeny population with the same sequence as the parental one. The most widely used amplification method is Polymerase Chain Reaction (PCR). Hence, the attachment of developing embryo to the appropriate body layer to obtain nutrition is called implantation.