TLS Online TPP Program

#Question id: 9187


Which of the following are defenses that some plants use against herbivory?

#Unit 9. Diversity of Life Forms
  1. production of the unusual amino acid canavanine
  2. release of volatile compounds that attract parasitoid wasps
  3. association of plant tissues with mycorrhizae
  4. A and B only
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TLS Online TPP Program

#Question id: 12710

#Unit 8. Inheritance Biology

When the two gene is present on the same chromosome and 50% chance of crossing over take place, then this is the case of ,

TLS Online TPP Program

#Question id: 12709

#Unit 8. Inheritance Biology

Which part is more recombinogenic and which part is more recombination frequency respectively? 
          

TLS Online TPP Program

#Question id: 12708

#Unit 8. Inheritance Biology

800 meiocytes with the genotype AaBb undergoes meiosis with 60% chance of crossing over with A and B. How many recombinant gamete form?

TLS Online TPP Program

#Question id: 12707

#Unit 8. Inheritance Biology

AaBb=100% chance of crossing over between gene A and B than chance of  recombination?

TLS Online TPP Program

#Question id: 12696

#Unit 8. Inheritance Biology

The following is a schematic representation of region of the chromosome of fly along with extent of six deletions (Del 1 to Del 6); 
When flies homozygous for the recessive mutations are crossed with flies heterozygous for the deletions, the following results are obtained, in which "m" represents a mutant phenotype and a plus sign (+) represents the wild type. On the basis of these data, determine the relative order of the seven mutant eenes on the chromosome. 

TLS Online TPP Program

#Question id: 12695

#Unit 8. Inheritance Biology

A panel of cell lines was created by human—mouse somatic-cell hybridization. Each cell line was examined for the presence of human chromosomes and for the production of three enzymes. The following results were obtained: 

On the basis of these results, give the chromosomal locations of the genes encoding enzyme 1, enzyme 2, and enzyme 3.