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TLS Online TPP Program

#Question id: 2093

Which of the following is transmembrane proteins?

#SCPH05 I Biotechnology

  1. lipid-anchored membrane proteins

  2. integral membrane proteins

  3. peripheral membrane proteins

  4. extracellular matrix proteins

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TLS Online TPP Program

#Question id: 4171

#SCPH06 I Botany

Use the table below to determine which template strand DNA sequence (written in the 5ʹ → 3ʹm direction) specifies the tripeptide with the sequence gly-ala-leu.
TLS Online TPP Program

#Question id: 8682

#SCPH28 | Zoology

Giardia intestinalis can cause disease in several different mammalian species, including humans. Giardia organisms (G. intestinalis) that infect humans are similar morphologically to those that infect other mammals, thus they have been considered a single species. However, G. intestinalis has been divided into different subgroups based on their host and a few other characteristics. In 1999, a DNA sequence comparison study tested the hypothesis that these subgroups actually constitute different species. The following phylogenetic tree was constructed from the sequence comparison of rRNA from several subgroups of G. intestinalis and a few other morphologically distinct species of Giardia. The researchers concluded that the subgroups of Giardia are sufficiently different from one another genetically that they could be considered different species


Which of the following changes would a modern systematist be most likely to make after learning of the results of the rRNA analyses?
TLS Online TPP Program

#Question id: 16133

#SCPH06 I Botany

You are running a human assisted reproduction clinic and providing state-of-the-art genetic diagnostic services. A married couple who already had a child with cystic fibrosis approach you because they wish to have another child, but only if they can be assured that the child will not have cystic fibrosis. You genotype the woman and discover that she is a heterozygote for Del508, the most common mutation causing cystic fibrosis. You suggest that the couple consider first polar body testing, in which several unfertilized oocytes (each with its first polar body) are retrieved from the woman, the first polar bodies are removed, and PCR tests are conducted on DNA from each of the first polar bodies. The couple agrees, and you obtain the following results:

 
Given the couple's desire to have a child without cystic fibrosis, which oocytes would you employ in vitro fertilization?
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#Question id: 14290

#SCPH05 I Biotechnology

Acetobacter aceti converts alcohol to acetic acid according to the schiometric relation

In a vigorously agitated and aerated reactor containing 20 g/l ethanol, the organism produces 16g/l acetic acid and 2g/l was the residual ethanol concentration what are the theoretical and observed yields of acetic acid expressed in g/g ethanol
TLS Online TPP Program

#Question id: 10883

#SCPH06 I Botany

Ecosystem having a three trophic level in which number of species is given in table


 Total 50 number of link among these trophic levels present. What is value of connectance in ecosystem?