Molecular Basis of Inheritance · Question 99

In an inducible operon, the genes are :

1. usually expressed unless a signal turns them "off"
2. always expressed
3. never expressed
4. usually not expressed unless a signal turns them "on"

One of the most frequently used techniques in DNA fingerprinting is :-

1. SSCP
2. SCAR
3. VNTR
4. AFLP

Read the following four statements (A-D) : How many of the above statements are right ?

1. Four
2. Two
3. Three
4. One

What is it that forms the basis of DNA Fingerprinting ?

1. The relative proportions of purines and pyrimidines in DNA
2. The relative amount of DNA in the ridges and grooves of the fingerprints
3. The relative difference in the DNA occurrence in blood, skin and saliva
4. Satellite DNA occurring as highly repeated short DNA segments

Removal of introns and joining of exons in a defined order during transcription is called

1. Looping
2. Inducing
3. Slicing
4. Splicing

If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complementary RNA strand sequence

1. ATCGU
2. UAGAC
3. AACTG
4. TTAGU

Which one of the following is not a part of a transcription unit in DNA ?

1. The structural gene
2. The inducer
3. A terminator
4. A promoter

Removal of RNA polymerase-III from nucleoplasm will affect the synthesis of

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

PCR and Restriction Fragment Length Polymorphism are the methods for

1. Genetic transformation
2. Genetic fingerprinting
3. Study of enzymes
4. DNA sequencing

The unequivocal proof of DNA as the genetic material came from the studies on a:

1. Viroid
2. Bacterium
3. Fungus
4. Bacterial virus