Satellite DNA is important because it

1. codes for protiens needed in cell cycle

2. shows high degree of polymorphism in population and also the same degree of

polymorphism in an individual, which is heritable from parents to children

3. does not code for protiens and is same in all members of the population

4. codes for enzymes needed for DNA replication.

In sea urchin DNA, which is double stranded 17% of the bases were shown to be

cytosine. The percentages of the other three bases expected to be present in this DNA

are

1. G/34%, A/24.5%, T/24.5%

2. G/17%, A/16.5%, T/32.5%

3. G/17%, A/33%, T/33%

4. G/8.5%, A/50%, T/24.5%

Transformation was discovered by

(1) Meselson and Stahl

(2) Hershey and Chase

(3) Griffith

(4) Watson and Crick

Select the correct option 

Commonly used vectors for human genome sequencing are

(1) T-DNA

(2) BAC and YAC

(3) Expression vectors

(4) T/A cloning vectors

Which enzymes/s will be produced in a cell in which there is a non-sense mutation in the lac Y gene?

(1) β-galactosidase

(2) Lactose permease

(3) Transacetylase

(4) Lactose permease and transacetylase

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

(1) tRNA

(2) hnRNA

(3) mRNA

(4) rRNA

PCR and Restriction Fragment Length Polymorphism are the methods for

1. study of enzymes

2. genetic transformation

3. DNA sequencing

4. genetic fingerprinting

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

(1) The inducer

(2) A terminator

(3) A promoter

(4) The structural gene

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

(1) TTAGU

(2) UAGAC

(3) AACTG

(4) ATCGU