Class 12 Biology - Chapter Human Reproduction NCERT Solutions | In our society the women are often blame
Welcome to the NCERT Solutions for Class 12th Biology - Chapter Human Reproduction. This page offers a step-by-step solution to the specific question from Excercise ".$ex_no." , Question 19: in our society the women are often blamed for givi....
Question 19
In our society the women are often blamed for giving birth to daughters.
In our society the women are often blamed for giving birth to daughters.
Can you explain why this is not correct?
Answer
All human beings have 23 pairs of chromosomes. Human males have 22 pairs of autosomes and contain one or two types of sex chromosome. They are either X or Y. On the contrary, human females have 22 pairs of autosomes and contain only the X sex chromosome. The sex of an individual is determined by the type of the male gamete (X or Y), which fuses with the X chromosome of the female. If the fertilizing sperm is X, then the baby will be a girl and if it is Y, then the baby will be a boy. Hence, it is incorrect to blame a woman for the gender of the child.
More Questions From Class 12 Biology - Chapter Human Reproduction
- Q:- What is spermatogenesis? Briefly describe the process of spermatogenesis.
- Q:- Describe the structure of a seminiferous tubule.
- Q:- What is oogenesis? Give a brief account of oogenesis.
- Q:- Identify True/False statements. Correct each false statement to make it true.
(a) Androgens are produced by Sertoli cells. (True/False)
(b) Spermatozoa get nutrition from Sertoli cells. (True/False)
(c) Leydig cells are found in ovary. (True/False)
(d) Leydig cells synthesise androgens. (True/False)
(e) Oogenesis takes place in corpus luteum. (True/False)
(f) Menstrual cycle ceases during pregnancy. (True/False)
(g) Presence or absence of hymen is not a reliable indicator of virginity or sexual experience. (True/False) - Q:- What are the major components of seminal plasma?
- Q:- Write two major functions each of testis and ovary.
- Q:-
What is menstrual cycle? Which hormones regulate menstrual cycle?
- Q:- What are the major functions of male accessory ducts and glands?
- Q:- Name the functions of the following.
(a) Corpus luteum
(b) Endometrium
(c) Acrosome
(d) Sperm tail
(e) Fimbriae - Q:- Name the hormones involved in regulation of spermatogenesis.
Popular Questions of Class 12 Biology
- Q:- Why is reproduction essential for organisms? Answer
- Q:- Name the parts of an angiosperm flower in which development of male and female gametophyte take place.
- Q:- What do you think is the significance of reproductive health in a society?
- Q:- Mention the advantages of selecting pea plant for experiment by Mendel.
- Q:- Group the following as nitrogenous bases and nucleosides:
Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine. - Q:- Explain antibiotic resistance observed in bacteria in light of Darwinian selection theory.
- Q:- What are the various public health measures, which you would suggest as safeguard against infectious diseases?
- Q:- Explain in brief the role of animal husbandry in human welfare.
- Q:- Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope, which sample would you carry and why?
- Q:- Can you list 10 recombinant proteins which are used in medical practice? Find out where they are used as therapeutics (use the internet).
Recently Viewed Questions of Class 12 Biology
- Q:- Who had proposed the chromosomal theory of inheritance?
- Q:- What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
- Q:- If the sequence of one strand of DNA is written as follows:
5-ATGCATGCATGCATGCATGCATGCATGC-3
Write down the sequence of complementary strand in 5→3 direction - Q:- Higher organisms have resorted to sexual reproduction in spite of its complexity. Why?
- Q:- Can we call human evolution as adaptive radiation?
- Q:- Give three hypotheses for explaining why tropics show greatest levels of species richness.
- Q:- Give an example for:
(a) An endothermic animal
(b) An ectothermic animal
(c) An organism of benthic zone - Q:- The following are some well-known abbreviations, which have been used in this chapter. Expand each one to its full form:
(a) MALT
(b) CMI
(c) AIDS
(d) NACO
(e) HIV - Q:- Discuss briefly the following:
(a) Radioactive wastes
(b) Defunct ships and e-wastes
(c) Municipal solid wastes - Q:- Write a short note on
(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals.
7 Comment(s) on this Question
Sunil Kumar Sagar
2019-06-17 13:02:45
Thankyou sir
Rakesh Kumar
2019-05-27 23:02:03
Thanks sir, for this
Arunachal
2019-05-01 11:15:47
Thank you
Kashish
2019-02-22 17:45:09
Thx it was very nice answer
priyanka
2019-02-03 16:53:39
thanku very much
Harsimran gill
2018-08-31 22:20:03
Thanks for this
zoya
2018-05-03 23:48:52
This is the best site to study..
- All Chapters Of Class 12 Biology
- All Subjects Of Class 12