Q163 / 200 · NEET 2009 (Screening) · Zoology

Which one of the following is the correct matching of three items and their grouping category? $\begin{array}{l|l} & \text{Items} & \text{Group} \\ \hline \text{(a)} & \text{Malleus, incus, cochlea} & \text{Ear ossicles} \\ \text{(b)} & \text{Ilium, ischium, pubis} & \text{Coxal bones of pelvic girdle} \\ \text{(c)} & \text{Actin, myosin, rhodopsin} & \text{Muscle proteins} \\ \text{(d)} & \text{Cytosine, uracil, thiamine} & \text{Pyrimidines} \end{array}$

  • A
    (a)
  • Correct answer
    B
    (b)
  • C
    (c)
  • D
    (d)

Solution

There are found total five nitrogenous bases in nucleic acids. Out of these adenine, guanine (purines) and cytosine, thymine (pyrimidines) are present in DNA, while RNA contains uracil in place of thymine (both pyrimidines) alongwith rest 3 similar to DNA.

Hence, the correct answer is option: 'B'.

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