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#Question id: 35515


Which of the following correctly describe the roles of gene classes in the ABC model of floral development in Arabidopsis?

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  1. Class A genes control the formation of sepals and petals
  2. Class B genes control the formation of petals and stamens
  3. Class C genes control the formation of stamens and carpels
  4. Class A and Class C genes function independently without any interaction
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#Question id: 4757

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The newborn baby of a mother having blood group O, Rh+ and father having blood group AB, Rh-, got mixed with other babies in the hospital. The baby with which of the following blood groups is not confirmable to be of the said couple?

(i) AB, Rh+                                                    (ii) O, Rh+

(iii) A, Rh+                                         (iv)  B, Rh+

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#Question id: 4758

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The allele l in human population is recessive lethal and x chromosome linked. If a female is heterozygous for l allele marries with normal male. What will be interpretation correct?

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#Question id: 4759

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which of the following is not a mechanism for sex determination?

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#Question id: 4761

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which of the following statements about a lethal allele is not correct?

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#Question id: 4762

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a semilethal allele is an example of which of the following extensions of mendelian genetics?

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#Question id: 4763

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in a rare blood type referred to as the bombay phenotype, individuals are unable to attach the a or b antigens to their red blood cells. individuals that are homozygous recessive for gene "h" have the bombay phenotype and their blood type is type "o" regardless of their abo genotype. this is an example of what extension of mendelian inheritance?