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TLS Online TPP Program

#Question id: 2630

What does graphical representation shown,

#Unit 2. Cellular Organization

  1. The Oc lac operator binds repressor with lower affinity than does the wild-type operator.

  2. The Oc lac operator binds repressor with higher affinity than does the wild-type operator.

  3. Lac Oc required a higher concentration of repressor to achieve full binding than did the wild-type operator.

  4. B & C

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TLS Online TPP Program

#Question id: 28464

#Unit 5. Developmental Biology

Anterior neural plate produce the next signals, that promotes the synthesis of the Pax6 transcription factor, Expression of Pax6 protein leads to which fate?
TLS Online TPP Program

#Question id: 6590

#General Aptitude

1

4

9

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1

2

3

4

2

4

6

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TLS Online TPP Program

#Question id: 5327

#Unit 8. Inheritance Biology

In the human pedigree shown here, the daughter indicated by the black circle (II-1) has a form of deafness determined by a recessive allele. What is the probability that the phenotypically normal son (II 3) is heterozygous for the gene?
TLS Online TPP Program

#Question id: 2849

#Unit 2. Cellular Organization

Methylation of lysines 4, 36, or 79 of histone H3 typically is associated……… of the genes, whereas methylation of lysines 9 or 27 of the same histone frequently is associated with …..
TLS Online TPP Program

#Question id: 5032

#Unit 11. Evolution and Behavior

There is still some controversy among biologists about whether Neanderthals should be placed within the same species as modern humans, or into a separate species of their own. Most DNA sequence data analyzed so far indicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which species concept is most applicable in this example?