Answer the following questions ( 1 mark ) 1. Mention the ways by which variant genotypes are produced in an organism? 2. How are fossils helpful in developing evolutionary relationships? Answer the following questions ( 2 mark) How do show that traits may be dominant or recessive? Mendel’s experiments Does genetic combination of father play a significant role in determining the sex of the child? Show with the help of a flow chart. Answer the following questions ( 3 mark ) 1) father is a wrestler and has a well-built body. He was awarded as Mr. India when he Sameer’s was young. Sameer is his only son. As Sameer grew older, everyone expected him to have the same body built up as his father. But he is thin. His friends tease him and he feels depressed by it. a) Is it true that a should also have heavy muscles? wrestler’s son b) What type of character is it ; acquired or inherited? c) What are the values shown by (VBQ) Sameer’s friends? 3) When a tall plant is crossed with a dwarf plant .What will be the ratio of tall to dwarf plants in F1 generation? Show with a help of cross.[HOTS] Mendal’s Answer the following questions ( 5 marks ) 1. How has the method of by humans helped in the evolution of different ‘artificial selection’ vegetables? 2. How do show that traits are inherited independently? Mendel’s experiments
Answer the following questions ( 1 mark ) 1. Mention the ways by which variant genotypes are produced in an organism? 2. How are fossils helpful in developing evolutionary relationships? Answer the following questions ( 2 mark) How do Mendel’s experiments show that traits may be dominant or recessive? Does genetic combination of father play a significant role in determining the sex of the child? Show with the help of a flow chart. Answer the following questions ( 3 mark ) 1) Sameer’s father is a wrestler and has a well-built body. He was awarded as Mr. India when he was young. Sameer is his only son. As Sameer grew older, everyone expected him to have the same body built up as his father. But he is thin. His friends tease him and he feels depressed by it. a) Is it true that a wrestler’s son should also have heavy muscles? b) What type of character is it ; acquired or inherited? c) What are the values shown by Sameer’s friends? (VBQ) 3) When a tall plant is crossed with a dwarf plant .What will be the ratio of tall to dwarf plants in F1 generation? Show with a help of Mendal’s cross.[HOTS] Answer the following questions ( 5 marks ) 1. How has the method of ‘artificial selection’ by humans helped in the evolution of different vegetables? 2. How do Mendel’s experiments show that traits are inherited independently?