In a DNA molecule, distance between two bases is
2 nm/ 20 Å
0.2 nm/ 2 Å
3.4 nm/ 34 Å
0.34 nm/ 3.4 Å
C.
3.4 nm/ 34 Å
DNA is a double-stranded polynucleotide arranged in a double helix. The two strands are entwined around one another, each complete coil measures 3.4 nm (10 bases long). Each strand links to the other by pairs of organic bases, where the pairings are always cystosine with guanine and thymine with adenine. The two strands that form the uprights run antiparallel, ie, in opposite directions.
MRI is not allowed in the following conditions except one. Identify the exception
Presence of pacemaker in the body
Pregnant women
Person suffering from stroke
Presence of metallic plate in the body for treatment of broken bones
Micropropagation is a technique for production of
true to type plants
haploid plant
somatic hybrids
somaclonal plants
Test cross is a cross between
hybrid and dominant parent
hybrid and recessive parent
two hybrid parents
two distantly related species
First genetically modified plant commercially released in India is
golden rice
slow ripening tomato
Bt brinjal
Bt cotton
Balbiani rings are the sites of
DNA replication
RNA and protein synthesis
synthesis of lipids
synthesis of polysaccharides
Which of the following diseases is related to cadmium pollution?
Minamata
Pneumoconiosis
Anaemia
Itai- Itai
Root cells of wheat has 2n = 42 chromosomes. Which one of the following is the basic chromosome number of wheat?
42
21
7
14
