Practice free Human Reproduction (Zoology) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which enzyme is produced by acrosome?
The acrosome, a cap-like structure over the anterior half of the sperm's head, contains the enzyme hyaluronidase. This enzyme helps the sperm to penetrate the zona pellucida of the egg during fertilization by breaking down hyaluronic acid in the extracellular matrix.
The acrosome is formed by the
The acrosome is formed by the Golgi complex in the developing spermatid. During the process of spermiogenesis, the Golgi complex produces vesicles that coalesce to form the acrosome, which contains enzymes necessary for penetrating the egg during fertilization.
In oogenesis which cells are produced at the end of multiplication phase?
In the process of oogenesis, the multiplication phase results in the formation of primary oocytes. During this phase, oogonia (germ cells) undergo mitotic divisions to produce a large number of primary oocytes. Therefore, the correct answer is 'Primary oocyte'.
In oogenesis which substance are present in primary oocyte of growth phase
During the growth phase of oogenesis, the primary oocyte accumulates various substances necessary for future development. These include fats, proteins, DNA, RNA, ATP, and enzymes. Thus, the correct answer is 'Above all'.
In oogenesis which cell body are concentrated in cytoplasm of primary oocyte of the growth phase ?
In the growth phase of oogenesis, the primary oocyte shows intense metabolic activity and accumulation of cell organelles such as mitochondria, Golgi complexes, and ribosomes. These organelles are essential for the development and maturation of the oocyte. Therefore, the correct answer is 'Above all'.
In menstrual cycle which period is known as menstrual phase?
The menstrual phase is the first phase of the menstrual cycle, lasting from day 1 to day 5. During this phase, the lining of the uterus sheds through the vagina, resulting in menstrual bleeding.
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.
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