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TLS Online TPP Program

#Question id: 33289

The instability of p53 results from its ubiquitinylation by a ubiquitin-protein ligase called:

#Unit 2. Cellular Organization
  1. SCF
  2. Mdm2 
  3. APC/C-Cdh1 
  4. CRL4–Cdt2
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TLS Online TPP Program

#Question id: 4196

#Unit 3. Fundamental Processes

The role of EF-Tu in bacterial protein synthesis is
TLS Online TPP Program

#Question id: 4064

#Unit 3. Fundamental Processes

Which of the following mutations can result in a reduction of β-galactosidase?
TLS Online TPP Program

#Question id: 18844

#Unit 13. Methods in Biology

In the extraction of DNA from cell with to remove the high protein content from the cell , before phenol treatment which of the following treatment is done 
TLS Online TPP Program

#Question id: 16132

#Unit 13. Methods in Biology

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:
 
the observation that the polar bodies for oocytes #1 and #5 test positive for both Del508 and the wild type sequence, because
TLS Online TPP Program

#Question id: 10536

#Unit 6. System Physiology – Plant

Hormonal interactions contribute to plant–insect herbivore interactions such as— ethylene, salicylic acid, and jasmonic acid. In particular, ethylene appears to play an important role in this context, what will be the effect of ethylene when is applied alone and when is applied with other amino acids?

a) ethylene applied together with JA it seems to reduces defense responses

b) Ethylene appears to applied alone to plants, ethylene has little effect on defense-related gene activation

c) when ethylene applied together with JA it seems to enhance JA responses or defense responses are significantly increased

d) Ethylene appears to applied alone to plants, ethylene has more effect on defense-related gene activation

Which of the following combination is correct about ethylene effects?