Females are sterile as ovaries are rudimentary, besides other underdeveloped characters, when their genetic makeup is
(A) AA+XXX
(B) AA+XO
(C) AAA+XXX
(D) AA+XXY

An individual suffering from a particular genetic disorder, has (a) short stature (b) rudimentary ovaries (c) underdeveloped feminine characters what will be the chromosome complement of such individual ?

In which of the following will be observed the webbed neck condition? (a) XXY (b) XY (c) XO (d) XXX

If Aa n dB are two sets, then (A-B)uu(AnnB) is equal to (a) AuuB (b) AnnB (c) A (d) B

AA n in N, 49^n+16n-1 is divisible by (A) 64 (B) 49 (C) 132 (D) 32

Let a,b,c be positive real parameter and ax^2+ b/x^2gec, AA xepsilonR then (A) c^2ge4ab (B) 4cgeb^2 (C) 4bcgec^2 (D) 4acltb^2

Let a,b,c be positive real parameter and ax^2+ b/x^2gec, AA xepsilonR then (A) 4abgec^2 (B) 4cgeb^2 (C) 4bcgec^2 (D) 4acltb^2

Let Aa n dB be two nonsinular square matrices, A^T a n dB^T are the transpose matrices of Aa n dB , respectively, then which of the following are correct? (a) . B^T A B is symmetric matrix (b) . if A is symmetric B^T A B is symmetric matrix (c) . if B is symmetric B^T A B is skew-symmetric matrix for every matrix A (d) . B^T A B is skew-symmetric matrix if A is skew-symmetric

If Aa n dB are square matrices of the same order and A is non-singular, then for a positive integer n ,(A^(-1)B A)^n is equal to A^(-n)B^n A^n b. A^n B^n A^(-n) c. A^(-1)B^n A^ d. n(A^(-1)B^A)^

The maximum area of the rectangle whose sides pass through the vertices of a given rectangle of sides aa n db is (a) 2(a b) (b) 1/2(a+b)^2 (c) 1/2(a^2+b^2) (d) non eoft h e s e

If vec aa n d vec b represent two adjacent sides vec A Ba n d vec B C respectively of a parallelogram A B C D , then show that its diagonals vec A Ca n d vec D B are equal to vec a+ vec b and vec a- vec b respectively.