Do genetic combination of mothers play a | Class 10 Science Chapter Heredity and Evolution, Heredity and Evolution NCERT Solutions

Question:

Do genetic combination of mothers play a significant role in determining the sex of a new born?

Answer:

Mother does not play a significant role in determining the sex of the new born because mothers have XX chromosome and they have 23 rd pair of sex chromosome XX. They contribute only the X. Sex of the newborn is always determined by the chromosome donated by the father because father has XY as the 23rd pair of sex chromosomes. So, if the father donates X chromosome, the child will be a girl and if father donates Y chromosome child will be male.

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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 27: Do genetic combination of mothers play a significant role in determining the sex of a new born?....

Do genetic combination of mothers play a | Class 10 Science Chapter Heredity and Evolution, Heredity and Evolution NCERT Solutions

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