TN State Board Samacheer Kalvi Online Test for 11th Std - Bio Zoology - English - Molecular Genetics

Question 1 Of 10

The transcription termination factor associated with RNA polymerase in prokaryotes is

∑ σ ρ ∑

Question 2 Of 10

A mRNA molecule is produced by

Replication Transcription Duplication Translation

Question 3 Of 10

The distance between two consecutive base pairs in DNA is …………………

0.34 nm 3.4 nm 0.034 nm 34 nm

Question 4 Of 10

SNP stands for

Single nucleotide Polymorphism Single Nucleoside Polypeptide Single nucleotide Polymorphism Single nucleotide polymer

Question 5 Of 10

Which is NOT a part of transcription unit?

Promoter Operator Structural gene Terminator

Question 6 Of 10

Repressor protein of Lac operon binds to ……………of operon

Promoter region Operator region terminator region inducer region

Question 7 Of 10

E. coli cell grown on 15N medium are transferred to 14N medium and allowed to grow for two generations. DNA extracted from these cells is ultracentrifuged in a cesium chloride density gradient. What density distribution of DNA would you expect in this experiment?

One high and one low density band One intermediate density band One high and one intermediate density band One low and one intermediate density band

Question 8 Of 10

DNA fingerprinting technique was developed by

Jacob and Monod Alec Jeffreys Frederick Sanger Alec Jeffreys

Question 9 Of 10

Identify the triplet pairs that code for Tyrosine

UUU,UUC UAU, UAU UGC, UGU CAU, CAC

Question 10 Of 10

If the length of E. coli DNA is 1.36 mm, the number of base pairs is

0.36 x 106m 4 x 106m 0.34 x 10-9nm 4 x 10-9m

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 11th Standard Bio Zoology - English Medium - Molecular Genetics

Samacheer Kalvi 11th Bio Zoology - Molecular Genetics - Book Back Questions in English Medium