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In which stage of cell division does the chromosome appear in V or I or J shape?

a) Metaphase b) Anaphase c) Prophase d) Telophase Answer: b) Anaphase Explanation: In the anaphase stage, the sister chromatids... View Article

How far is each base pair from the next one in a double helix DNA?

a) 0.34nm b) 0.34mm c) 0.43nm d) 0.43mm Answer: a) 0.34nm Explanation: The base pairs are covalently held together to form the... View Article

The statement – ‘Deoxythymidine is a monomer nucleotide of DNA’ is

a) False b) True Answer: b) True Explanation: The deoxyribose sugar with along with a base (ATGC), forms nucleoside. A nucleoside... View Article

What type of heart do hemichordates have?

a) Dorsal b) Ventral c) No heart d) Lateral heart Answer: a) Dorsal heart Explanation: Ventral means front side, and dorsal means... View Article

Why is our body temperature maintained?

a) To avoid hyperthermia b) To avoid hypothermia c) Both A and B d) None of these Answer: c) Both A and B Explanation: Our brain... View Article

The image type formed in the eyes of a cockroach is?

a) Superposition b) Apposition c) Both A and B d) None of these Answer: a) Superposition Explanation: The compound eye of the... View Article

The proteins encoded by Cry1ac and Cry2ab genes act on which of the following-

a) Nematodes b) Pinworms c) Boll worms d) Book worms Answer: c) Boll worms. Explanation: The Cry proteins (Cry1ac and Cry2ab) are found... View Article

The organism which is autotrophic but does not have the pigment is?

a) Nostoc b) Wolffia c) Yeast d) Nitrosomonas Answer : d) Nitrosomonas Explanation: Both Nitrosomonas and Nitrobacter do not undergo... View Article

The Roman number for 283 is

In Roman Numerals, 100 is denoted by C, 50 is denoted by L and 10 is denoted by X Therefore Roman Numeral for 283 is CCLXXXIII... View Article

Simplest form of 4372/5402 is

GCD(4372, 5402) = 2 So, dividing both numerator and denominator of by 2 GCD(2196, 2701) = 1 Therefore the simplest form of... View Article

Every real number is an irrational number

False, because there are many examples of real numbers which are not irrational, for example, 2, ½, 1.24 all are real numbers but not... View Article

What should be multiplied to 555 to get 560, 60, 550?

To get 560 we must multiply 560/555 to 555 555 × 560/555 = 560 Similarly, to get 60 we multiply 60/555 to 555 And to get 550 we multiply... View Article

What multiplied equals 7?

Since 7 is a prime number, so the two numbers which could be multiplied to get 7 is 7 × 1... View Article

Let the p.m.f (probability mass function) of a random variable x be P(x)= (4/x)(5/9)^x(4/x)^4-x when x = 0, 1, 2, 3, 4 otherwise P(x) = 0. Find E(x) and Var(x)

Given, P(x) = for x = 0, 1, 2, 3, 4 otherwise P(x) = 0 x 0 1 2 3 4 P(x) ∞ 1280/9... View Article

Let m be the mid-point and l be the lower class limit of a class in a continuous frequency distribution’ the upper-class limit of the class is:

Mid point of a class=(lower limit + upper limit)/2 Then, upper limit = 2 × mid-point − lower limit Therefore, upper limit = 2m − l... View Article

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