If a double stranded DNA has 20 per cent of cytosine, calculate the percent of adenine in the DNA.

If double stranded DNA has 14% C (cytosine) what percent A (adenine), T(thymine) and G(gaunine) would you expect?

Which of the following sequences along a double stranded DNA may be recognized as a cutting site for a particular restriction enzyme.

The two strands of DNA are…………… .

Justify the statements . If the answer is false , change the underlined word(s) to make the statement true . i. The DNA molecule is double stranded and the RNA molecule is single stranded . ii. The process of translation occurs at the ribosome . iiii. The job of mRNA is to pick up amino acids and transport them to the ribosomes . iv Transcription must occur before translation may occur .

If the template polynucleotide strand of DNA has the base sequence as TTACGGATA. What will be the sequence of bases on mRNA?

Smt Anagha Doshi purchased 22 shares of FV Rs 100 for market value Of Rs 660. Find the sum invested . After receiving 20% dividend , she sold sll the shares when market value was Rs 650. She paid 0.1% brokerage for each trading done. Find the per cent of profit or loss in the share trading .(Write your answer to the nearest integer.)

Read the paragraph and answer the questions given below: With the help of RNA, the genes present in the form of DNA particioate in the functioning of cell and thereby control the structure and functioning of the body. Information about protein synthesis is stored in the DNA and synthesis of appropriate proteins as per synthesized by DNA through rthe RNA. This is called 'Central Dogma'. mRNA is produced as per the sequence of nucleotides on DNA. Only one of the two strands of DNA is used in this process. The seqience of nucleotides in mRNA being produced is always complementary to the DNA strand used for synthesis. Besides, there is uracil in RNA instead of thymine of DNA. This is process of RNA synthesis is called 'transcription'. What is the similarity between mRNA and DNA?