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#Question id: 4809


The upper most following figure above shows the locations of four genes on the genetic map of an organism; the lower figure shows the locations of the same four genes on a physical map derived from the nucleotide sequence of the DNA of that organism. The maps are not identical because

#SCPH06 I Botany
  1. There is no relationship between the position of genes in a genetic map and their positions on the DNA

  2. recombination frequencies per kb of DNA are not uniform throughout a chromosome

  3. the farther apart two genes are, the more likely they are to recombine

  4. some genes contain introns

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TLS Online TPP Program

#Question id: 10807

#SCPH05 I Biotechnology

Cyanogenic Glycosides and Glucosinolates are nitrogen containing secondary metabolites in plants. Following are some statements regarding the action of Cyanogenic Glycosides and Glucosinolates;

a) Cyanogenic Glycosides release the poison hydrogen cyanide by the action of enzyme known as Hydroxynitrile lyase

b) Release of the mustard-smelling volatiles from glucosinolates is catalyzed by a hydrolytic enzyme, called a thioglucosidase or myrosinase

c) substerate for Glycosidase is Cyanogenic glycoside and Thioglucosidase is Aglycone

d) Like cyanogenic glycosides, glucosinolates are stored in the intact plant separately from the enzymes that hydrolyze them, and they are brought into contact with these enzymes only when the plant is crushed

Which of the following combinations of above statement is true?

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#Question id: 3700

#SCPH28 | Zoology

In the Meselson-Stahl DNA replication experiment, if the cells were first grown for many generations in 15N containing media, and then switched to 14N containing media, what percent of the DNA had 1 light strand and 1 heavy strand after 2 generations of growth in 15N growth media?

TLS Online TPP Program

#Question id: 10523

#SCPH05 I Biotechnology

Conifer resin ducts, which are found in the cortex and phloem, contain a mixture of diverse terpenoids, which are released immediately upon damage by herbivores such as;

a) monocyclic terpenes like- limonene and terpinolene

b) bicyclic monoterpenes- α-pinene and β-pinene

c) tricyclic sesquiterpenes- longifolene, caryophyllene, and δ-cadinene

d) tetracyclic terpenes- longifolene, tetra-terpinolene terpenoids are incorrect?

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#Question id: 15186

#SCPH01 Biochemistry

Electrophoretic resolution is achieved by adjusting
A. Current
B. Buffer concentration
C. Chemical nature of Buffer
D. Concentration of supporting media

TLS Online TPP Program

#Question id: 2937

#SCPH05 I Biotechnology

Separase initiates sister chromatid segregation at anaphase by cleaving: