TLS Online TPP Program

#Question id: 2136


When a bacterium such as E. coli is shifted from a warmer growth temperature to a cooler growth temperature, it compensates by:

#Section 2: General Biology
  1. increasing its metabolic rate to generate more heat.

  2. putting longer-chain fatty acids into its membranes.

  3. putting more unsaturated fatty acids into its membranes.

  4. shifting from aerobic to anaerobic metabolism.

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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

TLS Online TPP Program

#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?

TLS Online TPP Program

#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?

TLS Online TPP Program

#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?