A single base mutation in a gene may not always result in loss or gain of function. Do you think the statement is correct? Defined your answer.

"India has greater ecosystem diversity than Norway. "Do you agree with the statement? Give reasons in support of your answer.

Fresh milk has a ph of 6. how do you think the ph will change as it turns into curds ? Explain your answer.

Do you think it is ethical to manipulate organisms for human benefits? Justify your answer.

Statement-1(Assertion) and Statement-2 (reason) Each of these question also has four alternative choices, only one of which is the correct answer. You have to select the correct choice as given below. (a) Statement-1 is true, Statement-2 is true, Statement-2 is a correct explanation for Statement-1 Statement-1 is true, Statement-2 is true, Statement-2 is not a correct explanation for Statement -1 (c) Statement -1 is true, Statement -2 is false (d) Statement -1 is false, Statement -2 is true Statement -1 log_x3.log_(x//9)3=log_81(3) has a solution. Statement-2 Change of base in logarithms is possible .

Which one of the curves represent the human population growth at present? Do you think such a curve is sustainable.Give reason in support of your answer.

Fig. 7.6 shows the arrangement of desks in a classroom. Ashima, Bharti and Cainella are seated at A(3, 1). B(6, 4) and C(8, 6) respectively. Do you think they are seated in a line? Give reasons for your answer.

Statement-1(Assertion and Statement -2 (reason) Each of these examples also has four alternative choices, only one of which is the correct answer. You have select the correct choice as given below. Statement -1 If N=(1/0.4)^20 , then N contains 7 digit before decimal. Statement -2 Characteristic of the logarithm of N to the base 10 is 7.

One of the two set squares in your instrument box has angles of measure 30^(@) - 60^(@) - 90^(@) Take two such identical set - squares .Place them side by side to form a kite like the one shown here . How many lines of symmetry does the shape have ? Do you think that some shapes may have more than one line of symmetry ?