RNA

Q. Which sugar is present in RNA?

1. β-D-ribose
2. β-D-fructose
3. β-D-galactose
   
4. β-D-2-deoxyribose

Q.

Name the four bases present in DNA which one of these is not present in RNA.

Q. The complex that can show fac- and mer-isomers is

1. $\left[Pt\right(N{H}_3{)}_{2}C{l}_2]$
2. $\left[CoC{l}_2\right(en{)}_2]$
3. $\left[Co\right(N{H}_3{)}_{4}C{l}_2{]}^{+}$
4. $\left[Co\right(N{H}_3{)}_3\left(N{O}_2{)}_3\right]$

Q.

DNA and RNA contain four bases each. Which of the following bases is not present in RNA?
(a) Adenine (b) Uracil (c) Thymine (d) Cytosine

Q.

What ar the different types of RNA found in th cell?

Q.

What are the different types of RNA found in the cell?

Q.

Match the polymers given in Column I with the type of linkage present in them given in Column II.

$\begin{array}{cc}ColumnI& ColumnII\\ A.Terylene& 1.Glycosidiclinkage\\ B.Nylon& 2.Esterlinkage\\ C.Cellulose& 3.Phosphodiesterlinkage\\ D.Protein& 4.Amidelinkage\\ E.RNA& \end{array}$

Q. Which of the following is correct statement regarding RNA and DNA respectively?

1. The sugar component in RNA is a arabinose and the sugar component in DNA is ribose.
2. The sugar component in RNA is 2' – deoxyribose and the sugar component in DNA is arabinose
3. The sugar component in RNA is arabinose and the sugar component in DNA is 2' – deoxyribose.
4. The sugar component in RNA is ribose and the sugar component in DNA is 2' - deoxyribose.

Q. Right option of the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:

1. $2,1$
2. $6,12$
3. $8,4$
4. $12,6$

Q.

Amide group is present in

1. Proteins

2. Lipids

3. Carbohydrates

4. Amino acids

Q. What is mean by (i) peptide linkage (ii) biocatalysts?

Q. What is the Structure of r-RNA?

Q. Position of octahedral voids in fcc structure is/are:

1. Body centres of unit cell
2. Corners of unit cell
   
3. Edge centres of unit cell
   
4. Face-centres of unit cell

Q. $DNA$ and $RNA$ contain four bases each. Which of the following bases is not present in $RNA$?

Q.

The base found only in the nucleotide of RNA is

1. 2 - oxy - 4 amino pyramidine

2. 5 - methyl 2, 4 - dioxy pyramidine

3. 2, 4 - dioxy pyrimidine

4. 6 - amino pyramidine

Q. The relationship between the nucleotide triplets and the amino acids is called:

1. transcription
2. a genetic code
3. translation
4. replication

Q. Position of octahedral voids in fcc structure is/are:

1. Edge centres of unit cell
   
2. Corners of unit cell
   
3. Body centres of unit cell
4. Face-centres of unit cell

Q. Which one is found in ATP ribonucleotide

1. Guanine
2. Uracil
3. Adenine
4. None of these

Q. What is the major function of ribosomes?

Q.

The base found only in the nucleotide of RNA is

1. 2 - oxy - 4 amino pyramidine

2. 5 - methyl 2, 4 - dioxy pyramidine

3. 2, 4 - dioxy pyrimidine

4. 6 - amino pyramidine