Types of RNA

Q.

What are the functions of tRNA?

Q. Choose the type of RNA that is correctly matched with its form and function
$\begin{array}{cccc}& \text{Type of RNA}& \text{Form}& \text{Function}\\ \text{I}& \text{mRNA}& \text{Messenger}& \text{Carrier of information to ribosomes}\\ \text{II}& \text{rRNA}& \text{Ribosomal}& \text{Catalyses peptide bond formation}\\ \text{III}& \text{tRNA}& \text{Transfer}& \text{Transport of amino acids to ribosomes}\end{array}$

1. I, II & III
2. I and II
3. II and III
4. III only

Q. The most abundant RNA in a cell

1. rRNA
2. snRNA
3. tRNA
4. mRNA

Q. What is an RNA?

Q.

Identify the correct matching pair.

$\begin{array}{cccc}& \text{Type of RNA}& \text{Form}& \text{Function}\\ \text{I}& \text{mRNA}& \text{Messenger}& \text{carrier of information to ribosomes}\\ \text{II}& \text{rRNA}& \text{Ribosomal}& \text{initiates synthesis of proteins}\\ \text{III}& \text{tRNA}& \text{Transfer}& \text{Transport of amino acids to ribosomes}\end{array}$

1. I, II & III

2. I

3. II

4. Ill

Q. Select the wrong pair

1. RNA polymerase I -Sn RNA 5S rRNA, r-RNA
2. RNA polymerase I - r-RNA
3. RNA polymerase II - hnRNA
4. RNA polymerase III - tRNA

Q. The type of RNA that carries information for the sequence of amino acids during protein synthesis is ______________.

1. r-RNA
2. t-RNA
3. m-RNA
4. hn-RNA

Q. Which form of RNA has a structure resembling clover leaf?

1. hn-RNA
2. m-RNA
3. t-RNA
4. r-RNA

Q. What is the function of mRNA?

Q.

Where is RNA polymerase located?

Q. What is aneuploidy? Write any four symptoms of Down's syndrome.

Q.

hnRNA is formed by which enzyme?

Q. Which form of RNA has a structure resembling clover leaf?

1. hn-RNA
2. m-RNA
3. t-RNA
4. r-RNA

Q. Which of the following is a hereditary disease ?

1. Diabetes
2. AIDS
3. Hemophilia
4. Cancer

Q. Which of the following RNAs is not required for the synthesis of protein?

1. rRNA
2. tRNA
3. siRNA
4. mRNA

Q. Which of the following RNA's should be most abundant in animal cell?

1. mi-RNA
2. m-RNA
3. r-RNA
4. t-RNA

Q. How many types of RNA polymerases exist in cells? Write their names and functions.

Q. Which is the principal site for the development of ribosomal RNAs?

Q. Assertion :UAA, UAG and UGA terminate protein synthesis. Reason: They are not recognised by tRNA.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.

Q.

Identify the correct matching pair.

$\begin{array}{cccc}& \text{Type of RNA}& \text{Form}& \text{Function}\\ \text{I}& \text{mRNA}& \text{Messenger}& \text{carrier of information to ribosomes}\\ \text{II}& \text{rRNA}& \text{Ribosomal}& \text{initiates synthesis of proteins}\\ \text{III}& \text{tRNA}& \text{Transfer}& \text{Transport of amino acids to ribosomes}\end{array}$

1. $I,II\&III$

2. $I$

3. $II$

4. $III$

Q. The type of RNA that carries information for the sequence of amino acids during protein synthesis is ______________.

1. r-RNA
2. t-RNA
3. m-RNA
4. hn-RNA

Q. Match the types of nucleic acids given in column I with the items listed in column II.
$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{P. DNA}& \text{i. Pyridoxine}\\ \text{Q. rRNA}& \text{ii. Clover-leaf-model}\\ \text{R. tRNA}& \text{iii. Double helical model}\\ & \text{iv. Peptidyl transferase}\end{array}$

1. P - i , Q - ii, R - iii
2. P - iii, Q - ii, R - i
3. P - ii, Q - iv, R - i
4. P - iii Q - iv, R - ii

Q. Most abundant RNA of the cell is

1. m RNA
2. t RNA threonine
3. t RNA
4. r RNA

Q. Choose the type of RNA that is correctly matched with its form and function
$\begin{array}{cccc}& \text{Type of RNA}& \text{Form}& \text{Function}\\ \text{I}& \text{mRNA}& \text{Messenger}& \text{Carrier of information to ribosomes}\\ \text{II}& \text{rRNA}& \text{Ribosomal}& \text{Catalyses peptide bond formation}\\ \text{III}& \text{tRNA}& \text{Transfer}& \text{Transport of amino acids to ribosomes}\end{array}$

1. I, II & III
2. I and II
3. II and III
4. III only

Q. Match the types of nucleic acids given in column I with the items listed in column II.
$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{P. DNA}& \text{i. Pyridoxine}\\ \text{Q. rRNA}& \text{ii. Clover-leaf-model}\\ \text{R. tRNA}& \text{iii. Double helical model}\\ & \text{iv. Peptidyl transferase}\end{array}$

1. P - i , Q - ii, R - iii
2. P - iii, Q - ii, R - i
3. P - ii, Q - iv, R - i
4. P - iii Q - iv, R - ii

Q. If a cell lacks RNA polymerase III, then it cannot synthesize

1. tRNA
2. 28 S rRNA
3. Both (1) and (3)
4. 5 S rRNA

Q. Find the odd one out, with respect of X-linkage.

1. Haemophilia
2. Myopia
3. Night blindness
4. Nephritis

Q. The most abundant RNA in a cell

1. tRNA
2. mRNA
3. rRNA
4. snRNA

Q. Which form of RNA has a structure resembling clover leaf?

1. hn-RNA
2. m-RNA
3. t-RNA
4. r-RNA

Q. Which form of RNA has a structure resembling clover leaf?

1. mRNA
2. tRNA
3. rRNA
4. hnRNA