Chapter 182 of 2363 min read
Sex determination, mutation, genetic disorders
Why this is asked: Don't default to the mammalian pattern: in the ZW system that governs birds (and some fish and moths), it's the female who is heterogametic and determines the offspring's sex — the reverse of the XY system, where that role belongs to the human male.
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- •With the help of the given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in the generation.

- •Match List I with List II.
Choose the correct answer from the options given below:List I List II A. Down's syndrome I. 11th chromosome Thalassemia II. X chromosome Thalassemia III. 21st chromosome D. Klinefelter's syndrome IV. 16th chromosome
Open this in the full syllabus view · Botany