Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which period is of the cycle is known as a proliferative phase?
The proliferative phase occurs from day 6 to day 14 of the menstrual cycle. During this phase, the lining of the uterus (endometrium) thickens in preparation for a possible pregnancy.
In menstrual cycle on which day ovulation occurs?
Ovulation typically occurs on the 14th day of a 28-day menstrual cycle. During ovulation, a mature egg is released from the ovary and is available for fertilization.
What time is taken by the sperm emptied in vagina, to move toward uterus?
During movement of zygote into oviduct the division of zygote in 2 to 16 daughter cells. This process called
The process in which the zygote divides from 2 to 16 daughter cells while moving into the oviduct is called cleavage. Cleavage is a series of rapid mitotic divisions that occur in the early embryo, leading to the formation of a multicellular structure called morula.
Which cells secrete the enzymes for make implantation of embryo possible?
Trophoblast cells secrete enzymes that facilitate the implantation of the embryo into the uterine wall. These enzymes break down the endometrial lining, allowing the embryo to embed itself securely into the uterus, which is essential for successful pregnancy.
In humans after implantation what is the elaborate projection developed from trophoblast called?
After implantation, the trophoblast develops elaborate projections called chorionic villi. These villi extend into the maternal tissue and help in the formation of the placenta by facilitating nutrient and gas exchange between the mother and the developing embryo.
In human’s embryonic development chorionic villi which-operate with the tissue of the mother’s uterus to forms ...
The chorionic villi, which are projections from the trophoblast, cooperate with the tissue of the mother's uterus to form the placenta. The placenta is a critical structure that supports the developing embryo by providing nutrients and oxygen and removing waste products.
Function of the placenta is ...
The placenta has multiple functions that are essential for the development of the embryo. It delivers nutrients and oxygen to the embryo, and it removes waste products from the embryonic blood. Thus, the correct answer is 'all of these'.
Which part present between placenta and embryo?
The umbilical cord is the part that connects the embryo (or fetus) to the placenta. It functions as the conduit through which nutrients and oxygen are delivered to the embryo and waste products are removed.
Which hormones are not produced by placenta?
Placenta produces hormones like hcG, hcL and estrogen
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