In Drosophila melanogaster, vestigial wings are determined by a recessive allele of a gene that is linked to a gene with a recessive allele that determines black body color. T. H. Morgan crossed black-bodied, normal-winged females and gray-bodied, vestigial-winged males. The F1 were all gray bodied, normal winged. The F1 females were crossed to homozygous recessive males to produce testcross progeny. Morgan calculated the map distance to be 17 map units. Which of the following information is correct about the testcross progeny?

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#Question id: 23987

#Unit 1. Molecules and their Interaction Relevant to Biology

If there is a great problem of discipline in your school which disrupts the routine of the school. What would you like to do to deal with such a utter chaos?

TLS Online TPP Program

#Question id: 23988

#Unit 1. Molecules and their Interaction Relevant to Biology

Suppose luckily you get an opportunity to serve the minority institution. The castism and narrow views are the rules of the place. As you are little bit having scientific outlook and you become prey of victimisation. How would you find yourself in a equilibrium in such an institution?

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#Question id: 23989

#Unit 1. Molecules and their Interaction Relevant to Biology

If your principal indulges in corruption and forces you to co-operate, how would you make compromise with such a superior fellow?

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#Question id: 809

#Unit 1. Molecules and their Interaction Relevant to Biology

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which of the following double-stranded DNA molecules would denature at a lower temperature than the 40 base-pair double-stranded molecule described above?

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#Question id: 808

#Unit 1. Molecules and their Interaction Relevant to Biology

Which, if any, of the following statements is false?

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#Question id: 807

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following forces can stabilize a normal DNA double-helix?