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TLS Online TPP Program

#Question id: 7118

At the molecular and cellular level, how does morphogenesis differ from establishment of embryonic axes and the specification of cellular identity?

#Unit 5. Developmental Biology
  1. The formation of embryonic axes and the specification of cell fates rely heavily on gene expression patterns, whereas morphogenesis relies primarily on cell-cell signalling.
  2. The specification of pattern and fate has been presented as being completely under maternal control, whereas morphogenesis concerned with zygotic control over development.
  3. The formation of embryonic axes and the specification of cell fates rely heavily on cell-cell signaling events, and their influence over gene expression patterns, whereas morphogenesis relies primarily on cell-cell adhesion and cell motility.
  4. There is no fundamental difference in mechanism between patterning events such as axis formation and morphogenic events such as gastrulation.
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TLS Online TPP Program

#Question id: 12691

#General Aptitude

If the area of a rectangle be (x^2 +7x + 10) sq. cm, then one of the possible perimeter of it is
TLS Online TPP Program

#Question id: 12692

#General Aptitude

A kite in the shape of a square with a diagonal 32 cm attached an equilateral triangle of the base 8 cm. Approximately how much paper has been used to make it? (Use √3 = 1.732)
TLS Online TPP Program

#Question id: 12693

#Unit 8. Inheritance Biology

A panel of cell lines was created by human-mouse cell line hybridization. Each line was examined for the presence of  human chromosome and for the gene production. The following result were obtained;
On the basis of these results, which chromosome has the gene  that encodes the enzyme ?
TLS Online TPP Program

#Question id: 12694

#Unit 8. Inheritance Biology

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

On the basis of these results, which chromosome has the gene that encodes the enzyme? 
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. 
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.