RNA

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

Q.

What is the main function of RNA polymerase?

Q.

Name the stop terminator codons.

Q.

Where does the DNA Replication begin in the S Phase in animal cells?

Q.

Do Ribosomes Have DNA?

Q. Which of the following has RNA as its genetic material?

1. E. coli
2. HIV
3. Agrobacterium
4. Amoeba

Q.

Why is it called reverse transcription?

Q. Define the process of transcription.

Q.

Which is the first amino acid to dock in the ribosome when proteins are synthesized ?

Q.

Do introns code for amino acids?

Q. If there are 666 bases in a mrna that codes for a protein with 222 amino acids and the base at position 601 is deleted such that the length of the rna becomes 665, how many codons will be altered?

Q. Spliceosomes are made up of

1. introns and proteins
2. monocistronic RNA and proteins
3. snRNPs and proteins
4. snRNPs and exons

Q. mRNA uses instead of thymine.

1. uracil
2. adenine
3. cytosine

Q. The 'r' in the 'rRNA' stands for________

1. ribosomal
2. resistant
3. ribose
4. replicating

Q. Considering lac operon, match the following:

$\begin{array}{cc}ColumnI& ColumnII\\ p.Regulatorgene& i.Bindingsiteforrepressorprotein\\ q.Operatorgene& ii.Code\left(s\right)fortheproteinoftheenzymes\\ r.Promotergene& iii.Code\left(s\right)forrepressorprotein\\ s.Structuralgenes& iv.BindingSiteforRNApolymerase\end{array}$

1. p-ii, q-i, r-iii, s-iv
2. P-iv, q-i, r-ii, s-iii
3. p-iii, q-i, r-iv, s-ii
4. p-iii, q-iv, r-i, s-ii

Q.

How do you read codons?

Q. Translation begins when:

1. 
   DNA molecule is recognized by RNA polymerase
2. 
   There is binding of mRNA to ribosome
3. Recognition of anti-codon is done by codon
4. 
   tRNA binds to the mRNA

Q. Define the process of transcription.

Q. Considering lac operon, match the following:

$\begin{array}{cc}ColumnI& ColumnII\\ p.Regulatorgene& i.Bindingsiteforrepressorprotein\\ q.Operatorgene& ii.Code\left(s\right)fortheproteinoftheenzymes\\ r.Promotergene& iii.Code\left(s\right)forrepressorprotein\\ s.Structuralgenes& iv.BindingSiteforRNApolymerase\end{array}$

1. p-ii, q-i, r-iii, s-iv
2. p-iii, q-i, r-iv, s-ii
3. p-iii, q-iv, r-i, s-ii
4. p-iv, q-i, r-ii, s-iii

Q. The primary job of rRNA in the smaller subunit of ribosome is to

1. Provide some part of the genetic information
2. Facilitate the binding of tRNA to the ribosome
3. Facilitate the binding of mRNA to the ribosome
4. Facilitate the transfer of peptidyl bonds between amino acids

Q. Which of the following is seen associated with ribosomes?

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

Q. The highly repetitive DNA is

1. Histone gene cluster
2. DNA minisatellite
3. ALU element
4. Dispersed repetitive DNA

Q. act as the intermediaries between nucleotide and amino acid sequences.

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

Q. Transfer RNA carry to the ribosome.

1. sugar
2. glucose
3. amino acids
4. water

Q. RNA has uracil instead of
(a) adenine
(b) thymine
(c) guanine
(d) cytosine

Q.

Select the correct word from two options provided in brackets with regards to the statements.​A nitrogenous base present in DNA (adenine/ uracil).​

Q. Regarding the assertion and reason, select the correct choice.
Assertion [A]: The amino acid-bound tRNA enters the aminoacyl tRNA binding site.
Reason [R]: The amino acid-bound tRNA transfers the amino acid at the peptidyl tRNA site.

1. Both A and R are true and R explains A
2. Both A and R are true, but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. What is the difference between peptides and peptones?

Q. The central dogma of protein synthesis in teminism is

1. RNA $\to$ DNA $\to$ mRNA $\to$ protein
2. DNA $\to$ RNA $\to$ mRNA $\to$ protein
3. DNA $\to$ DNA $\to$ mRNA $\to$ protein
4. mRNA $\to$ rRNA $\to$ DNA $\to$ protein

Q. Match the following columns.
$\begin{array}{cc}ColumnI& ColumnII\\ A.tRNA& 1.Linkingofaminoacids\\ B.mRNA& 2.Transferofgeneticinformation\\ C.rRNA& 3.Nucleolarorganisingregion\\ D.Peptidyl& 4.Transferofaminoacidfrom\\ transferase& cytoplasmtoribosome\end{array}$

1. (A)→(4), (B)→(2), (C)→(3), (D)→(1)
2. (A)→(1), (B)→(4), (C)→(3), (D)→(2)
3. (A)→(1), (B)→(2), (C)→(3), (D)→(4)
4. (A)→(1), (B)→(3), (C)→(2), (D)→(4)