Number of base pairs in human chromosomes are:

1. $3<mspace\; width="1em"></mspace>\times <mspace\; width="1em"></mspace>{10}^9$

2. $3<mspace\; width="1em"></mspace>\times <mspace\; width="1em"></mspace>{10}^7$

3. $6<mspace\; width="1em"></mspace>\times <mspace\; width="1em"></mspace>{10}^8$

4. $6<mspace\; width="1em"></mspace>\times <mspace\; width="1em"></mspace>{10}^7$

Gene is composed of:
1.  Amino acids
2.  Polynucleotide
3.  Fatty acid
4.  Nitrogen bases

The molecular weight of DNA in yeast is:

1. $2.$ $56$ $\times$ ${10}^9$

2.  $0.5$ $$ $\times$ ${10}^9$

3. $7$ $\times$ ${10}^7$

4. $6$ $\times$ ${10}^6$

The similarity between DNA and RNA is that both:

1. are polymers of nucleotides

2. have a similar pyrimidine

3. have similar sugars

4. genetic material in all organism

During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be:

1. TCTGG

2. UAUGC

3. UATGC

4. TATGC