•   Differential rates of reproduction and survival of an organism is called as? Selection.
  • DIMBOA in leaves in maize confers resistance against? European corn borer.
  • Diplospory is the embryosac developed from the megaspore which may be haploid or diploid.
  • Davenport gave inheritance of skin colour in human.
  • De vroies gave term mutation.
  • Deoxyribonucleic acids and their ability to form polynucleotide chain were discovered by – Levene (1931).
  • Directorate of Plant Protection Quarantine and Storage is located at — Faridabad.
  • Discovery of non-disjunction of X chromosomes in Fruit fly Drosophila.
  • Dominance variance has relationship with heteozygosity, heterosis and SCA
  • Dominance variance results due to heterosis, interalleleic interaction, cytoplasmic effects.
  • Dominant and recessive epistasis is also called Inhibitory gene action.
  • Dominant epistasis (simple epistasis) is which a dominant allele at one locus can mask the expression of both the alleles at another locus results in 12:3:1 ratio.
  • Dominant inhibhitary epistasis (inhibitary gene action) bin which dominant allele at one locus can mask the expression of both dominant and recessive allele at the second locus resulting in 13:3 ratio.
  • Down syndrome is also referred to as Trisomy 21.
  •  Duplicate and additive epistasis is also called Polymeric gene action.
  •  Duplicate dominant epistasis is also called Duplicate gene action.
  • Duplicate dominant epistasis (duplicate gene action) in which dominant allele at either of the loci can mask the expression of recessive alleles at the two loci resulting in 15:1 ratio also referred as duplicate gene action.
  •  Duplicate recessive epistasis is also called Complementary Epistasis.
  • Duplicate recessive epistasis (complementary epistasis) where recessive alleles at either of the two loci can mask the expression of dominant alleles at the two loci resulting in 9:7 ratio.
  • Duplications aberration was reported by Bridges (1919) in Drosophila.
  • Discovery of DNA as genetic material was done by? Avery, Ma Cleod and McCarty.
  • Distyly refers to two types of styles and stamens. Thrum type which as short style and high anthers, pin type with long style and low anthers. Crosses are compatible only when style and stamen are of matching length.
  •  Diversity Arrays Technology (DArT) is a high-throughput genetic marker technique that can detect allelic variations to provides comprehensive genome coverage without any DNA sequence information for genotyping and other genetic analysis. The general steps involve reducing the complexity of the genomic DNA with specific restriction enzymes, choosing diverse fragments to serve as representations for the parent genomes, amplify via polymerase chain reaction (PCR), insert fragments into a vector to be placed as probes within a microarray, then fluorescent targets from a reference sequence will be allowed to hybridize with probes and put through an imaging system. The objective is to identify and quantify various forms of DNA polymorphism within genomic DNA of sampled species.
  • DNA alpha enzyme is for protein synthesis.
  • DNA barcoding is a method of species identification using a short section of DNA from a specific gene or genes. The premise of DNA barcoding is that by comparison with a reference library of such DNA sections (also called "sequences"), an individual sequence can be used to uniquely identify an organism to species, just as a supermarket scanner uses the familiar black stripes of the UPC barcode to identify an item in its stock against its reference database. These "barcodes" are sometimes used in an effort to identify unknown species or parts of an organism, simply to catalog as many taxa as possible, or to compare with traditional taxonomy in an effort to determine species boundaries.
  • DNA gyrase introduces negative super coiling.
  • DNA is visualized by Ethidium Bromide.
  • DNA methylation involves the addition of methyl group.
  • DNA molecule that undergoes replication is? Template strand.
  • DNA Pol 1 removal of RNA primer.
  • DNA polymerase III is the replicating enzyme in bacteria.
  • DNA Polymerase enzyme 2 and 4 is for repair mechanism.
  • DNA Polymerase enzyme 3 for replication.
  • DNA Polymerase enzyme 5 for transition synthesis.
  • DNA polymerase I was discover by Korenberg.
  • DNA polymerases enzyme replicates DNA.
  • DNA replication type is found to occur in chloroplast DNA.
  • DNA sequence found within genes that are involved in regulation of patterns of development in animals and plants are called as homeobox.
  • DNA sequences that increase the function of promoter is called as? Enhancer.
  • DNA sequences that move from one location to another location in the genome is called as selfish DNA.
  • DNA synthesis takes place in S phase.
  • DNA was first synthesized by? A Kornberg.
  • DNS polymerase III was discovered by Thomas korenberg.