TLS Online TPP Program

#Question id: 10524


Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids, these alkaloids shows;

a) Alkaloids are derived from the tryptophan as constitutively produced defensive secondary metabolites

b) These benzoxazinoids such as DIBOA and its derivative DIMBOA are usually stored in the peroxisome

c) Upon damage, the inactive glycosides are hydrolyzed, generating glucosinolate, which are toxic not only to insect herbivores but also against pathogens

d) DIBOA and DIMBOA perform insecticidal and pesticidal activities

e) It can be inactivated by hydroxylation and N-glycosylation reactions

Which of the following combination is correct about benzoxazinoids alkaloids?

#Section 6: Plant, Animal and Microbial Biotechnology
  1. B and C  
  2. A, C and D 
  3. B, C and E 
  4. A, D and E
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TLS Online TPP Program

#Question id: 3528

#Section 3: Genetics, Cellular and Molecular Biology

Consider the following cross:

A/a ; B/b ; C/c ; D/d ; E/e  X a/a ; B/b ; c/c ; D/d ; e/e

What proportion of progeny will phenotypically resemble the first parent?

TLS Online TPP Program

#Question id: 3529

#Section 3: Genetics, Cellular and Molecular Biology

Mendel crossed tall and round seeded pea plants with dwarf and wrinkle seeded pea. The F1 plants were all tall and round seed. What is the probability of tall plant with wrinkle seed in F2 generation?

TLS Online TPP Program

#Question id: 3530

#Section 3: Genetics, Cellular and Molecular Biology

Mendel’s law of segregation, as applied to the behavior of chromosomes in meiosis, means that:

TLS Online TPP Program

#Question id: 3531

#Section 3: Genetics, Cellular and Molecular Biology

Due to independent assortment resulting gamete is

TLS Online TPP Program

#Question id: 3532

#Section 3: Genetics, Cellular and Molecular Biology

In a plant species, flower color purple is dominant over white. One such purple-flowered plant upon selfing produced 35 viable plants, of which 9 were white flowered and the rest were purple flowered. What fraction of these purple-flowered progeny is expected to be pure purple-flowered line?

TLS Online TPP Program

#Question id: 3533

#Section 3: Genetics, Cellular and Molecular Biology

What would be the frequency of dominant phenotype for all character individuals from a mating of two AaBbCc individuals?