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प्रश्न
In human beings, the correct sequence of events during reproduction is
विकल्प
gamete formation, fertilisation, zygote, embryo
embryo, zygote, fertilisation, gamete formation
fertilisation, gamete formation, embryo, zygote
gamete formation, fertilisation, embryo, zygote
उत्तर
gamete formation, fertilisation, zygote, embryo
Explanation -
In human beings, sexual reproduction takes place by the combination of gametes, i.e. sperm and egg, formed in male and female, respectively. The fusion of gametes is called fertilisation.
The fusion forms a zygote, which divides repeatedly to form the embryo. The embryo gets implanted in female uterus for further development to form foetus.
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संबंधित प्रश्न
Choose the correct answer:
Ovum is a ______________
Choose the correct answer:
The onset of menstruation in the female is termed __________
The _______ is also called the womb.
Estrogen is secreted by ______
A neat labelled diagram describes the parts of a typical angiospermic ovule.
______ is homologous to Bartholin's glands.
All are associated with ovulation in human female, EXCEPT
Cleavage in mammalian egg is ______.
Read the following and answer from given below:
Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.
Identify the functions of LH.
- Release of a secondary oocyte from Graafian follicle.
- Stimulates corpus luteum to secrete progesterone.
- Stimulates estrogen formation.
- Promotes development of egg to form secondary oocyte.
______ is not a part of the female reproductive system in human beings.
