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#Question id: 27314


A feature of RNA that adds to its propensity to form double-helical structures is additional non-Watson–Crick base pairs. One such example is the G:U base pair, which has

#Section 3: Genetics, Cellular and Molecular Biology
  1. hydrogen bonds between N1 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C2 of uracil and N1 of guanine.

  2.  hydrogen bonds between N3 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C6 of uracil and N7 of guanine. 
  3. hydrogen bonds between N3 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C2 of uracil and N1 of guanine.
  4. hydrogen bonds between N3 of uracil and the carbonyl on C6 of guanine, and between the carbonyl on C2 of uracil and N7 of guanine. 
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TLS Online TPP Program

#Question id: 4847

#Section 3: Genetics, Cellular and Molecular Biology

Determine distance between gene A and B, If cross allowed between neurospora I with AB genotype and Neurospora II with ab genotype. Following ascus are

AB AB ab ab 400

AB aB Ab ab 200

Ab Ab aB aB 50

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#Question id: 4848

#Section 3: Genetics, Cellular and Molecular Biology

Neurospora strain with genotype AB was cross to another strain with genotype ab. Following different ascus and their appropriate number given in table.

Distance map unit between Gene A and centromere?

TLS Online TPP Program

#Question id: 4849

#Section 3: Genetics, Cellular and Molecular Biology

When F1generation of a dihybrid is allowed to test cross, the expected ratio is of genotype when complete linkage?

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#Question id: 4900

#Section 3: Genetics, Cellular and Molecular Biology

The chlorophyll-deficient types occur in a particular plant species due to a mutation in the DNA of the chloroplast itself, Female cytoplasm chlorophyll-deficient organisms crossed with male normal chlorophyll will produce progeny

TLS Online TPP Program

#Question id: 4901

#Section 3: Genetics, Cellular and Molecular Biology

Assume that the alleles A (dominant) and a (recessive) show a maternal effect mode of inheritance. In a cross between an Aa female and an aa male, what would be the phenotypes of the progeny?

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#Question id: 4902

#Section 3: Genetics, Cellular and Molecular Biology

Leber hereditary optic neuropathy (LHON) is mitochondrial diseases present in family. Which of the following observation is correct?