During DNA replication, why is it that the entire molecule does not open in one go? Explain replication,fork. What are the two functions that the monomers (dNTPs) play?

What is the function of an RNA primer during DNA replication ?

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?

Two key events take place, during S phase in animal cells, DNA replication and duplication of centriole. In which parts of the cell do events occur?

Answer the following When resistors are connected in series, they are connected one after another. If any one of them does not function, the circuit breaks and there is no flow of electricity. If two give less individually. If three bulbs are connected in series, their light output will decrease further. Think about it: What is the reason behind this?

Mitosis results in producing two cells which are similar to each other. What would be the consequence if each of the following irregularities occur during mitosis? Duplication of DNA does not occur.

What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions