Semi-discontinuous mode of DNA replication was discovered by
Meselson and Stahl
Watson and Crick
Hershey and Chase
Okazaki and Okazaki
Which one is the correct base pairing for DNA molecule?
Explain the structure of DNA and RNA nucleotides.
- Deoxyribose sugar
If a DNA has 20% adenine then what will be the percentage of guanine , show it with necessary calculations. Options are ---
What is referred to a satellite chromosomes?
What is triplet codon?
Lac operon is called negative regulation because__________
The structural genes can digest lactose
None of these
The repressor protein inhibits the transcription of structural genes.
It gets active only in pressure of lactose
What are the basic units of heredity?
Given below is a schematic diagram of a portion of DNA.
(a) How many strands are shown in the diagram?
(b) How many nucleotides have been shown in each strand? (c) Name the parts numbered 1, 2, 3, 4 and 5 respectively. (d) Name the DNA unit constituted by the parts 1, 2 and 3 collectively.
What Is Central Dogma In Molecular Biology?
How do prokaryotes organize DNA?
Pyrimidine bases present in DNA are__________.
What are the 3 main functions of nucleic acids?
The pitch of the double-stranded B-DNA helix is
Both A and C
The Location or Position of a Gene on a Chromosome is called _____ .
Which one of the following is used as a vector for cloning genes into higher organisms?
What is meant by peptones and peptides
Organelle without a cell membrane is known as what?
Nucleic acids are polymers of nucleotides.
In DNA base pairing, adenine always pairs with
What is a chromatin network?
The triplets of bases in DNA that code for amino acids are called
How many stages are there in DNA replication?
Sutton and Boveri used chromosome movement during cell division to explain Mendel’s laws.
- Carbon-1' of pentose sugar
- N-1 and N-9
- Both B and C
- Carbon-5' of pentose sugar