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1. If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant, (rr YY) the seeds produced in F1 generation are
 
2. In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are

(i) large chromosome
(ii) small chromosome
(iii) Y-chromosome
(iv) X-chromosome