Biology questions
20584 published questions with worked solutions.
- The DNA strand which is oriented in 5' → 3' direction and is not involved in RNA synthesis is called
- Polysomes are
- The initiation codon in prokaryotes codes for
- If each codon has only one nitrogen base, the possible number of codons would be
- Normally, AUG acts as initiation codon and codes for amino acid methionine, sometimes GUG also acts as initiation codon and codes...
- Gene responsible for the synthesis of repressor in operon is called
- In lac operon, which gene is responsible for the production of repressor protein?
- The cluster of genes with related functions are called
- In lac operon, _____ is regulated by common promoter and regulatory genes
- During gene regulation and expression in an operon, _____ codes for protein, r-RNA and t-RNA
- The enzyme -galactosidase of lac operon is coded by
- In which type of DNA replication, out of the two newly formed molecules, one is purely a new one and the other one is old?
- DNA consists of _____ acid
- Nucleotide arrangement in DNA can be seen by
- Trifoliate or clover leaf-like RNA is
- Genes are chemically
- Wobbling of _____ does not affect translation
- The codon for anticodon 3' UUUA 5' is
- The number of hydrogen bonds in the DNA molecule of 150 base pairs having 60 AT pairs would be
- The unit monomer in DNA is nucleotide, many molecules of which are joined together forming complex molecule, it is referred as