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प्रश्न
Can a child have blood group O if his parents have blood group ‘A’ and ‘B’. Explain.
उत्तर १
If parents are heterozygous then child can have O blood group but if parents are homozygous then child cannot have O blood group.
उत्तर २
Yes, a child with blood groups A and B can have blood group O.
If one parent's genotype is IAIo and the other parent's genotype is 1B 1o, then gametes from the parents can have either of the genotypes, i.e. IA, 1B or Io.
If fertilisation occurs only between gametes with Io, the child's genotype will be IoIo, and the child will have blood group O.
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संबंधित प्रश्न
Dominant character masks the ______________ characters.
TT : Homozygous : : Tt : ____________
Give appropriate biological/technical terms for the following:
A pair of corresponding chromosomes of the same size and shape, one from each parent.
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
What is the phenotypic ratio and genotypic ratio of the above cross in (ii)?
Define the following:
Recessive
State Mendel's law of dominance.
Give Reason:
Discontinuous variations are inheritable.
Law of independent assortment can be explained with the help of ______.
What does the progeny of a tall plant with round seeds and a short plant with wrinkled seeds look like?
Give statement of the law of dominance.
