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B. Answer any two questions from 10 to 13. Each carries 2 scores. (2x2=4), 10. Name the scientists with following contributions, a) One who trace a specific nuclear structure all through spermatogenesis in a, few insects, now termed as X- chromosome., b) Who proposed the theory of chromosomal basis of inheritance., 11., , Fu bck head Ag} — Brn fate, , Many “oops" on =, , pee Au i {, Palin crease tongue, , ‘Congenital heart, disease, , , , a) Identify the syndrome from the diagram, and write down its karyotype? (1), b) It occurs in both sexes (Male and female)? Write the reason (1), , 12. Identify the trait from pedigree chart. Give one example each., , eo E, , 680 | 7 ia [, , , , , , , , , , , , (a) (b), , 13. Observe the inheritance shown in A and B, , A B, Parents —— Tall X — Dwarf ABlood, group B Blood, 7 i, Gametes ®, , , , <P? ¥, , F,generation. —— Tt Tall AB Blood group, , a) Name the type of inheritance shown in A and B?, b) What is the difference between the two types of inheritance?