The different types of RNAs involved in gene expression are

mRNA and rRNA only

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mRNA, rRNA, tRNA

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Mitochondrial RNA and chloroplast RNA only

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mRNA and tRNA only

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Solution

The correct option is B mRNA, rRNA, tRNA
Messenger RNAs (mRNAs) carry the information for the amino acid sequence of one or more polypeptides specified by a gene or set of genes which is translated into an amino acid sequence of polypeptides. Ribosomal RNAs (rRNAs) are structural and functional part of ribosomes which serve as the site for proteins synthesis. Transfer RNAs (tRNAs) decipher the mRNA information and transfer the appropriate amino acid to a growing polypeptide chain during protein synthesis. Thus, mRNA, tRNA and rRNA are involved in gene expression. The mitochondrial and chloroplast RNA are translated in these organelles only and does not affect the expression of nuclear genes. The correct answer is option B.

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Similar questions

Q. In bacteria, which enzyme catalyses the transcription of all types of RNA (mRNA, tRNA and rRNA)

Q. What is the fullform of DNA, RNA, mRNA,tRNA,and rRNA

Match the RNA polymerase types in column I with that of the product they synthesize in column II.

Column I	Column II
a. RNA pol. I	i. Synthesizes mRNA and hnRNA
b. RNA pol. II	ii. Synthesizes tRNA , 5 srRNA, Sn RNA in nucleolus
c. RNA pol. III	iii. Synthesizes rRNA (28S, 18S) in nucleolus

Q. How many different types of RNA polymerases are involved in synthesis of all rRNA of

80 s

ribosome?

Q. Paragraph for below question
नीचे दिए गए प्रश्न के लिए अनुच्छेद

In bacteria, there are three major types of RNA; mRNA, tRNA and rRNA. All three RNAs are needed to synthesize proteins in a cell. The mRNA provides the template, tRNA brings amino acids and reads the genetic code, and rRNAs play structural and catalytic role during translation. Many times translation begins much before the mRNA is fully transcribed.

जीवाणु में आरएनए (RNA) के तीन मुख्य प्रकार - दूत आरएनए (mRNA), अंतरण आरएनए (tRNA) तथा आर आरएनए (rRNA) होते हैं। सभी तीनों आरएनए (RNAs) एक कोशिका में प्रोटीन के संश्लेषण के लिए आवश्यक होते हैं। दूत आरएनए (mRNA) टेम्पलेट प्रदान करता है, अंतरण आरएनए (tRNA) अमीनों अम्ल लाता है एवं आनुवंशिक कोड को पढ़ता है तथा आर आरएनए (rRNAs) अनुवादन के दौरान संरचनात्मक तथा उत्प्रेरकी भूमिका निभाता है। कई बार दूत आरएनए (mRNA) के पूर्ण रूप से अनुलेखित होने से बहुत पहले ही अनुवादन शुरू हो जाता है।

Q. In bacteria, tRNA is synthesized by

प्रश्न - जीवाणु में अंतरण आरएनए (tRNA) किसके द्वारा संश्लेषित होता है?

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