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प्रश्न
Give appropriate biological/technical terms for the following:
The kind of twins formed from two fertilized eggs.
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उत्तर
Fraternal twins
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संबंधित प्रश्न
Explain the process of fertilization in human beings.
State its functions in case of a pregnant human female.
What is the main difference between sperms and eggs of humans? Write the importance of this difference.
State the changes that take place in the uterus when Implantation of embryo has occurred
Describe in brief the structure of placenta
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.
State the role of placenta in the development of embryo.
Rewrite the following terms in a correct and logical sequence:
The luteal phase, follicular phase, menstrual phase, ovulatory phase.
The below diagram is of a developing embryo is a mother’s womb:
(i) Write the functions of the placenta, amnion, and umbilical cord.
(ii) How are the waste products of a fetus removed?
(iii) What is the gestation period?
Name the Following
Days in the human gestation period.
