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प्रश्न
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?
उत्तर
Father
APPEARS IN
संबंधित प्रश्न
If X chromosome is inherited from mother and Y from father, the offspring will be male.
The person A has only B chromosomes in all its gametes. On the other hand, another person C has chromosome D in half of gametes and chromosome E in the other half of gametes. When chromosomes B and D combine during fertilisation, a female zygote results. On the other hand, combination of B and E chromosomes produces a male zygote.
(a) What are chromosomes (i) B (ii) D, and (iii) E?
(b) Out of B, D and E, which two chromosomes are of the same type?
(c) Which chromosome is smaller in size?
(d) What is the general name of chromosomes such as B and E?
(e) Out of the two persons A and C, which one is (i) male, and (ii) female?
Name two animals which have nineteen pairs of chromosomes.
Answer the following question:
How is sex determined in human beings? Explain with the help of a diagram.
How drones are produced in honey bees?
Distinguish between heterogametic and homogametic sex determination systems.
From the following which option correctly represents the normal genetic constitution of a ovum?
Haplodiploidy is found in ______.
Which of the following statements is not true with respect to variation?
How many types of gametes are produced by a human female?
