Created by StemPy LabIn a honey bee colony, the queen and the workers are females, and the drones are males. A queen has 32 chromosomes. Which statement about a drone is correct?
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← Assertion (A): The ABO blood groups of humans show both co-dominance and multiple alleles. Reason (R): Multiple alleles can be seen in a single diploid person, who may carry all three alleles I^A, I^B and i.Read the following statements about sex determination.
(i) In grasshopper, sex is determined by the XO type, and the males have one chromosome fewer than the females.
(ii) Human males produce two kinds of sperms, so sex determination in humans is an example of male heterogamety.
(iii) In birds, the females have a Z and a W chromosome, while the males have a pair of Z chromosomes.
(iv) In the XO type, all the sperms carry an X chromosome.
(v) In humans, the type of ovum decides the sex of the child.
How many of the statements above are correct? →
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