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TLS Online TPP Program

#Question id: 3297

Which of the following is incorrect statement?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Extinction rates are higher on small islands than large island

  2. Sympatric speciation involves separation of populations within the same habitate resulting insect populations may become reproductively isolated on different host plants

  3. Convergent evolution has led to the emergence of similar looking floras and faunas in different species where environmental conditions are similar

  4. Disruptive selection favors the survival of individuals with intermediate phenotypes

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TLS Online TPP Program

#Question id: 262

#Section 2: General Biology

Changes in the topology and three-dimensional shape of B-DNA can result from
TLS Online TPP Program

#Question id: 363

#Section 4: Fundamentals of Biological Engineering

What is the pH of a mixture of 0.042 M NaH2PO4 and 0.058 M Na2HPO4? If 1.0 mL of 10.0 M NaOH is added to a liter of the buffer prepared, how much will the pH change? (pKa = 6.86)
TLS Online TPP Program

#Question id: 3697

#Section 3: Genetics, Cellular and Molecular Biology

In the Meselson-Stahl DNA replication experiment, what percent of the DNA was composed of one light strand and one heavy strand after one generation of growth in 14N containing growth media?
TLS Online TPP Program

#Question id: 14414

#Section 2: General Biology

How Aldehydes work as effective antimicrobial agent?
TLS Online TPP Program

#Question id: 14137

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Consider the following alignment of two DNA sequences:
                            AGTAAC
                            AA_ _AC

Assuming an affine gap scoring scheme of an identity matrix for substitution, a gap initiation penalty of 1 and a gap extension penalty of 0.1, the score of the alignment is _________