How many of the following were the features of the Human Genome

1.99.9% bases are present are exactly same in all humans

2.all sequences were found to be coding sequences

3.Repeated sequences make up very large portion of the human genome

4.Repeated sequences are useful for chromosome structure, dynamics and evolution

5.The maximum no of genes were found to be present at the chromosome which was last sequenced

6.The fewest no of genes were found to be present at the chromosome which is present in male only.

1. 1

2. 2

3. 3

4. 5

The locations in human genome which differ by a single base difference is known as

1. Single nucleotide mutation

2. Single nucleotide polymorphism

3. RFLP

4. Single nucleotide polymorphogenesis

The largest known human gene is

1. Dystropin protein gene on X chromosome

2. Sry gene on Y chromosome

3. Dystropin protein gene on Y chromosome

4. Sry gene on X chromosome

Which of the following RNA polymerase catalyses the formation of transfer RNA in eukaryotes?

1. RNA polymerase I                        

2. RNA polymerase II

3. RNA polymerase I and II              

4. RNA polymerase III

Out of 64 codons how many of them code for amino acids?

1. 64                            

2. 20                            

3. 61                            

4. 32

Isotopes used in proving semiconservative replication of DNA were:

1. ¹⁴N ¹⁴C            

2. ¹⁴N ¹⁵N            

3. ¹⁴N ³¹P             

4. ¹⁴C ³¹P

Bacterial nucleoid has:

1. One single-stranded DNA            

2. One double-stranded DNA

3. Two single-stranded DNA             

4. Many double-stranded DNAs

Column-I                                        Column-II

I. Operator site                               (A) Binding site for RNA polymerase

II. Promoter site                             (B) Binding site for repressor molecule

III. Structural gene                         (C) Codes for enzyme protein

IV. Regulator gene                          (D) Code for repressor molecules

The correct match is:

1. I - B, II - A, III - C, IV - D         

2. I - B, II - A, III - D, IV - C

3. I - D, II - C, III - A, IV - B         

4. I - B, II - C, III - A, IV - D

In chromosome, DNA is associated with:

A. Negatively charged proteins       B. Positively charged proteins

C. Neutral proteins                        D. NHC protein

1. B, D                

2. A, B, C, D       

3. B, C, D            

4. A, B, C

Heterochromatin:

A. Is more densely packed      B. Is stains dark

C. Is transcriptionally active    D. Is transcriptionally inactive

1. A, C                

2. A, B, C, D        

3. B, C, D            

4. A, B, D