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1. Compare chromosome maps and physical (sequence) maps by defining their basic principles.( (15 points) 2. In Kansas, a farmer is growing a variety of wheat called TK138. In Poland another farmer is growing another variety of wheat called UG334. The yield of UG334 is only about 40% of the yield of TK138. The narrow-sense heritability for TK138 is 0.95. Considering narrow sense heritability value, is it logical to plant TK138 wheat in Poland? Explain your answer thoroughly. (Explain also narrow sense heritability). (15 points) Indicate if the given phrases are true (T) or false (F). Explain your answer. (If you answer only as true (T) or false (F), you cannot get any point. Write at least 2 sentences to explain. ) (7 points/each) ********* 3. The aneuploidy of sex chromosomes is less severe than aneuploidy of autosomal chromosomes in human. 4. ..............The recombination in bacteria occurs between two homologous chromosomes. 5. .To study complex traits in human, statistical methods are important. ********** 6. Down syndrome is an inherited disease. *********** 7. ************* In human males, Y chromosome cannot pair with X during meiosis because there is no homology between them. -8. * . Dosage compensation for X chromosome in human occurs due to 2 times more expression of X linked genes in males than in females. 9. Monozygotic twins may have different genomes when they are born. m ************ ..There is minimal genetic diversity in human population due to selection of dominant traits. Hardy-Weinberg law explains allele and genotype frequency in an ideal population. ..Mendel didn't encounter linkage in his experiments. **************** 10. 11. 12.