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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
Differentiate between male and female heterogamety.
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
Which combination of genes in the zygote will produce children with blue eyes?
Write a short note on sex determination in man.
Complete the following sentence with appropriate word:
___________ chromosomes do not take part in sex determination.
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Female heterogamy is shown by
The sex chromosome in a human ovum is ______.
