TN State Board Samacheer Kalvi Online Test for 12th Std - Bio Zoology - English - Molecular Genetics

Question 1 Of 10

In DNA fingerprinting, separation of DNA fragments is done by………

Centrifugation Electrophoresis X-ray diffraction denaturation

Question 2 Of 10

Which of the chromosome has a higher gene density?

Chromosome 20 Chromosome 19 Chromosome 13 Chromosome Y

Question 3 Of 10

which of the following statements is not true about DNA replication in eukaryotes?

Replication begins at a single origin of replication. Replication is bidirectional from the origins. Replication occurs at about 1 million base pairs per minute. There are numerous different bacterial chromosomes, with replication occurring in each at the same time.

Question 4 Of 10

One of the aspect is not a feature of genetic code?

Specific Degenerate Universal Ambiguous

Question 5 Of 10

A nucleoside is composed of………………………………

Sugar and Phosphate Nitrogen base and Phosphate Sugar and Nitrogen base Sugar, Phosphate and Nitrogenous base

Question 6 Of 10

Which of the following statements about DNA replication is not correct?

Unwinding of DNA molecule occurs as hydrogen bonds break Replication occurs as each base is paired with another exactly like it Process is known as semiconservative replication because one old strand is conserved in the new molecule Complementary base pairs are held together with hydrogen bonds

Question 7 Of 10

Watson and Crick proposed their double helical DNA model based on the X-ray diffraction analysis of………………

Erwin Chargaff Meselson and Stahl Wilkins and Franklin Griffith

Question 8 Of 10

Which of the following is the correct sequence of event with reference to the central dogma?

Transcription, Translation, Replication Transcription, Replication, Translation Duplication, Translation, Transcription Replication, Transcription, Translation

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Bio Zoology - English Medium - Molecular Genetics

Samacheer Kalvi 12th Bio Zoology - Molecular Genetics - Book Back Questions in English Medium