GENETIC ENGINEERING - EXAMPLE 27.3 : (a) Male with genotype GGmm and phenotype gray wingless mates with female with genotype ggMM and phenotype black winged in fruit flies. G is dominant to g in color. M is dominant to m in wing shape. If the actual distribution of the second generation of the fruit flies was as follow : 890 gray wingless, 900 black winged, 115 gray winged, 95 black wingless, calculate the recombination frequency between the two genes and distance in recombination units. Let 1 map unit = 1 % recombination. (b) A DNA molecule has 180 base pairs and 20 % adenine. How many cytosine nucleotides are present in this molecule of DNA?
1 2191In the definition of mutation we say sudden heritable change i the DNA, so what does sudden means here?
1238QUANTUM BIOLOGY - EXAMPLE 33.7 : (a) In a DNA of a living cell, the quantum information available in the bases guanine (G) and thymine (T) are | G > = | 110 > and | T > = | 010 > respectively. Calculate | G > - | T >. (b) In a living biological cell, the step time for random walk of an electron is t. The localization time of an electron is T. If i is the geometric average of T and t, find log T as a function of t and i.
1 1975PeopleSoft has its own naming convention for system and non-system (application) tables. In the list below, RECORDNAME refers to the name of any table or record.Referring to the above information, which one of the following identifies the naming convention PeopleSoft uses for system tables?
1 1135PeopleSoft has its own naming convention for system and non-system (application) tables. In the list below, RECORDNAME refers to the name of any table or record.Referring to the above information, which one of the following identifies the naming convention PeopleSoft uses for non-system(application) tables?
1 1184How are the concepts of chromosome, chromatin and chromatids related? In which phase of the cell cycle does dna duplicate?
822What is the completing sequence of nitrogen-containing bases for an agccgttaac fragment of a dna chain?
1132Bacteria are prokaryotic cells, i.e., They do not have membrane-delimited nucleus. Eukaryotes have cells with delimited nucleus. Where in these types of cells can dna are found?
1101What is the numeric relation between pyrimidine and purine bases in the dna molecule? Is that relation valid in rna molecules?
1057What is the rule for the pairing of nitrogen-containing bases in the dna molecule and in the rna? Is this last question appropriate?
1023What are the chemical bonds of the dna molecule that are broken for the replication process to occur?
937
How DNA is being Transplanted?
cancer cells have their dna wound back wards, is that true?
Does unwinding DNA cause aging?
Is Recombination in Human Mitochondrial DNA really possible?
Why does RNA have 5 bases and DNA has only 4?
A blastomere was removed from an 8-cell human embryo, and its beta-globin gene was amplified by PCR. The beta-globin DNA was treated with an enzyme that cuts on either side of and within the normal allele (producing a small fragment), but not within the sickle cell allele (producing a large fragment). Electrophoresis of the treated DNA from the blastomere demonstrated the presence of both a large and small fragment derived from the beta-globin genes. How should you interpret this test?
How the positive and negative DNA markers are used in genetic engineering?
DNA binding by proteins with the helix-turn-helix (HTH) motif does not involve a) altered stacking of the DNA at the center of symmetry. b) hydrogen bonds, salt bridges, and van der Waals contacts. c) interactions with base pairs in the major groove of DNA. d) interactions with the sugar-phosphate backbone of DNA.
How to Insert Genomic DNA into yeast ?
How to find a sequence of dna molecule?
What is a DNA array?
How can all organisms share the same 4 bases DNA and still be so diverse?
what is the connection between a chromatid and a replicated DNA molecule?
What is DNA computing ?
How to extract DNA from semen (sperm)?