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प्रश्न
Explain the following terms:
Identical twins
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उत्तर
Identical twins - A single fertilized egg or Zygote splits into two parts after conception, resulting in the development of two individual embryos which later develop into indentical twins.
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संबंधित प्रश्न
There are ................ pairs of chromosomes in the human being.
In a human, how many chromosmes are present in a skin cell?
A zygote which has inherited an X chromosome from the father will develop into :
(a) baby boy
(b) baby girl
(c) adult
(d) either boy or girl
A couple with a newborn baby is troubled that the child does not resemble either of them. Suspecting that a mixup occurred at the hospital, they check the blood type of the infant. It is type O. Because the father is type A and the mother type B, they conclude that a mixup has definitely occurred. Are they correct? Give reason for your answer.
A family consists of two parents and their five children and the pedigree chart below shows the inheritance of the trait colour blindness in them.
Who is colour blind in the parents – the Father or the Mother?
Choose the correct answer from the four options given below :
In a human male, a sperm will contain :
Sex is determined in human beings ______.
A zygote which has an X-chromosome inherited from the father will develop into a
Fill the blank circles in figure and identify the sex of child A and B.
Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
