Recent questions in Genetics and Evolution

In eukaryotic cell, (a) DNA in chromosomes consist of histone proteins like HU, HSP-1 and H-NS and (b) each chromosome contains a single linear double-stranded DNA molecule.

asked Apr 3, 2014 by pady_1

1 answer

In eukaryotic cell, the DNA is packaged into chromosomes and is present in___________.

asked Apr 3, 2014 by pady_1

0 answers

The DNA in a bacterium is a supercoiled double-stranded circular molecule that is packaged in the _______________region of the cell.

asked Apr 3, 2014 by pady_1

0 answers

Who worked out the three-dimensional structure of DNA starting from x-ray diffraction photographs taken by franklin and wilkins ?

asked Apr 3, 2014 by pady_1

0 answers

The complementary base pairing between the bases A:T & G:C are bonded by which bond ?

asked Apr 3, 2014 by pady_1

0 answers

The two DNA strands are organized in ______________ arrangement.

asked Apr 3, 2014 by pady_1

0 answers

On the other template strand (that has 5' 3' orientation) DNA polymerase synthesizes short pieces of new DNA in 5' 3' direction and then joins them, these are known as

asked Apr 3, 2014 by pady_1

1 answer

DNA polymerase I also corrects mistakes in DNA by removing mismatched nucleotides, it is known as

asked Apr 3, 2014 by pady_1

0 answers

Expand RFLP

asked Apr 3, 2014 by pady_1

0 answers

Which the given genetic terms refers to, a gene that masks the expression of the other ?

asked Apr 3, 2014 by pady_1

0 answers

Which of the following is the site of transcriptionally inactive DNA ?

asked Apr 3, 2014 by pady_1

0 answers

Which of the following is the site of synthesis of (or codes for) histone mRNA ?

asked Apr 3, 2014 by pady_1

1 answer

Which of the following are found only in organisms containing polycistronic mRNA ?

asked Apr 3, 2014 by pady_1

1 answer

Which of the following is most likely mechanism for the origin of multigene families ?

asked Apr 3, 2014 by pady_1

1 answer

Which of the following is not involved in the processing of mRNA precursors in eukaryotic cells ?

asked Apr 3, 2014 by pady_1

1 answer

In eukaryotes, which is the initiating amino acid ?

asked Apr 3, 2014 by pady_1

1 answer

During translation in prokaryotes, which sequence lies 5' to the AUG initiation codon and is the binding site for the 30S ribosomal subunit ?

asked Apr 3, 2014 by pady_1

1 answer

In prokaryotic ribosome, one of the binding sites for tRNA is P site which is responsible for ?

asked Apr 3, 2014 by pady_1

1 answer

The attachment of an amino acid to a tRNA is catalyzed by which enzyme ?

asked Apr 3, 2014 by pady_1

1 answer

Most amino acids in proteins are specified by more than one codon. Therefore, genetic codon is said to be

asked Apr 3, 2014 by pady_1

1 answer

Which amino acids are represented by a single codon ?

asked Apr 3, 2014 by pady_1

1 answer

During translation, the sequence of an mRNA molecule is read by _____________.

asked Apr 3, 2014 by pady_1

0 answers

Each codon is recognized by a triplet of bases, called an anticodon which is present in _____.

asked Apr 3, 2014 by pady_1

1 answer

Which of these are termination or stop codons ?

asked Apr 3, 2014 by pady_1

0 answers

Sickle cell anemia disease molecular basis, is the change of which amino acid residue for a valine at position 6 of the ?-chain ?

asked Apr 3, 2014 by pady_1

1 answer

Assigning funcitons to the sequences is called

asked Mar 24, 2014 by pady_1

1 answer

the approach used to identify genes that are expressed as RNA is

asked Mar 24, 2014 by pady_1

0 answers

the human genome consists of

asked Mar 24, 2014 by pady_1

0 answers

The human genome project was launched in the year

asked Mar 24, 2014 by pady_1

1 answer

the i gene in lac operon codes for

asked Mar 24, 2014 by pady_1

0 answers

The inducer for lac operon is

asked Mar 24, 2014 by pady_1

1 answer

Match the following

asked Mar 24, 2014 by pady_1

0 answers

___ regulates the accessibility of the promoter to the DNA

asked Mar 24, 2014 by pady_1

0 answers

in prokaryotes the control of transcription occurs majorly at

asked Mar 24, 2014 by pady_1

0 answers

lactose upon the action of bea-galactosidase is cleaved into

asked Mar 24, 2014 by pady_1

0 answers

Regulation of gene expression occurs at

asked Mar 24, 2014 by pady_1

1 answer

____ is important for the terrmination of translation

asked Mar 24, 2014 by pady_1

1 answer

UTRs are a.present at 5' end b. at the 3' end c.both 5' and 3'end d. are required for efficient translation

asked Mar 24, 2014 by pady_1

0 answers

____ subunit of the ribosome encounters the mRNA

asked Mar 24, 2014 by pady_1

0 answers

the charging of tRNA occurs enables

asked Mar 24, 2014 by pady_1

0 answers

The charging of tRNA occurs in the presence of

asked Mar 24, 2014 by pady_1

1 answer

___ do not have specific no tRNA molecules

asked Mar 24, 2014 by pady_1

0 answers

___ is also called the adapter molecule

asked Mar 24, 2014 by pady_1

1 answer

the proof for the triplet code can be understood by

asked Mar 24, 2014 by pady_1

0 answers

The sickle cell anemia the mutation occurs at the

asked Mar 24, 2014 by pady_1

1 answer

the genetic code is

asked Mar 24, 2014 by pady_1

0 answers

There are ___ stop codons

asked Mar 24, 2014 by pady_1

1 answer

the proof for the triplet code came from the experiments conducted by

asked Mar 24, 2014 by pady_1

0 answers

George Gamow rgues the existence of only__ codons

asked Mar 24, 2014 by pady_1

0 answers

The no. of adenylate residues added during tailing is

asked Mar 24, 2014 by pady_1

1 answer

Ask Questions, Get Answers