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प्रश्न
The membranous cover of the ovum at ovulation is ______.
पर्याय
Corona radiata
Zona radiata
Zona pellucida
Chorion
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उत्तर
The membranous cover of the ovum at ovulation is corona radiata.
Explanation:
The corona radiata is the membranous cover of the ovum at ovulation, formed by the layers of follicular cells surrounding the ovum. It provides nutrients and protection to the ovum during ovulation.
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संबंधित प्रश्न
Explain the process of birth in human beings.
Name the parts of the human female reproductive system where
i. fertilisation takes place
ii. implantation of the fertilised egg occurs
List the two types of reproduction. Which one of the two is responsible for bringing in more variations in its progeny and how?
Give appropriate biological/technical terms for the following:
The kind of twins formed from two fertilized eggs.
The structure formed by the villi of the embryo and the uterus of the mother.
Given below are diagrams showing the different stages in the process of fertilisation of an egg. in the human female reproductive tract.
Study the diagrams and answer the questions:
1) Arrange the letters given below each diagram in a logical sequence to show the correct order in the process of fertilisation.
2) Where does fertilisation normally take place? and What is ‘Implantation’ that follows fertilisation?
3) Mention the chromosome number of the egg and zygote in humans.
4) Explain the term ‘Gestation’. How long does Gestation last in humans?
5) Draw a neat, labelled diagram of a mature human sperm.
Where does a fertilised ovum develop into a baby in the human body?
What is the frequency of menstrual cycle in human females (or women)?
Mention two functions of human testes.
Why is it an advantage for the testes to be situated in the scrotal sac outside the main body cavity? Can you think of one disadvantage?
Describe the process of fertilisation in humans and development of embryo briefly.
The normal body cell of an organism contains 28 pairs of chromosomes. The number of chromosomes present in its germ cell will be
(a) 28
(b) 14
(c) 56
(d) 42
Write two examples of sexually transmitted diseases caused by virus.
Explain how the transmission of virus and bacteria diseases be prevented?
Trace the path of sperms from where they are produced in human body to the exterior.
Define the term puberty.
In humans, sperm production occurs in the organ ______.
What is reproduction? List its two types.
Define the following:
Parthenogenesis
Define the following:
Gestation
What are the signs of puberty in human males and females?
Rewrite the following terms in a correct and logical sequence:
The luteal phase, follicular phase, menstrual phase, ovulatory phase.
Differentiate
Sexual Reproduction and Asexual Reproduction.
Explain the term Parturition or birth.
State the Location:
Uterus
Choose the Odd One Out:
What is inhibin?
How does human sperm locomote?
Distinguish between Vasa efferentia and Vasa deferentia.
