TLS Online TPP Program

#Question id: 10794


Which one of the following characteristics of about lignin is incorrect?

#Section 6: Plant, Animal and Microbial Biotechnology
  1.  Most abundant organic substance in plants and a highly branched polymer of phenylpropanoid groups
  2. lignins are involved in plant–animal interactions, helping to attract animals to flowers and fruit by providing visual and olfactory signals
  3. lignin has significant protective functions in plants, Its physical toughness deters feeding by animals, and its chemical durability makes it relatively indigestible to herbivores
  4. Lignin is generally formed from three different phenylpropanoid alcohols: coniferyl, coumaryl, and sinapyl, alcohols which are synthesized from phenylalanine

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TLS Online TPP Program

#Question id: 4846

#Section 3: Genetics, Cellular and Molecular Biology

If plant with genotype AB/ab is self pollinated where A and B are link at 20 map unit then the probability of getting AABB and AAbb genotype respectively ?

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?