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1. ### Where can i buy PTC Paper?

I once tried, and I couldn't find it except to order it from some Biological Supplier.

1 Answers · Science & Mathematics · 28/01/2010

2. ### If one parent is a homozygous for PTC tasting, could some of the children be non - tasters?

The homozygous dominant taster TT will pass on a dominant T allele to all children, so they will all be tasters.

3 Answers · Science & Mathematics · 20/11/2012

3. ### The allele for PTC tasting is inherited as a dominant. Use T for tasters and t for nontasters and answer the f?

a. TT and Tt are tasters b. tt is unable to taste c. hmm...100-60=40, it would be more interesting to use Hardy-Wienberg to determine the frequency of tasters vs. non-tasters. p=freq T, q= freq t p^2= freq Tt, 2pq...

1 Answers · Science & Mathematics · 07/04/2010

4. ### Where is the gene for PTC tasting located?

The gene primarily rsponsible is found on the long arm of chromosome #7.

1 Answers · Science & Mathematics · 04/04/2010

5. ### Why is untreated paper used in the PTC taste test?

Untreated paper can be used as a control.

1 Answers · Science & Mathematics · 16/02/2010

6. ### Would the frequencies of the alleles for PTC tasting and non-tasting remain constant over time? Why or why not?

They should, because reproduction is random with respect to taster/nontaster phenotype. That is, people who are tasters are not more likely to have more children than nontasters.

1 Answers · Science & Mathematics · 02/02/2011

7. ### Suppose 64% of a remote mountain village can taste phenylthiocabamide (PTC) and must therefore have at least o?

If 64% can, 36% can't. (100% - 64% = 36%) q^2 = 0.36 q = 0.6. p = 1 - 0.6 = 0.4 Heterozygotes = 2pq = 2 (0.4) (0.6) = .48 48% of the population.

1 Answers · Science & Mathematics · 22/10/2008

8. ### How much percent of the population can taste PTC paper?

70%. I can't :( I wonder what it tastes like...

1 Answers · Science & Mathematics · 07/01/2010

9. ### There is a single gene that controls the ability to taste PTC paper..?

Both PP and Pp PP because both alleles are "tasters" Pp because one allele is "taster", which is dominant and so "masks" the recessive "non-taster" allele.

1 Answers · Science & Mathematics · 15/10/2011

10. ### If 9% or a .09 frequency of the population cannot taste PTC (recessive trait):?

Since Fr(tt) =0.09, Fr(t)=sqrt(0.09) or 0.3. According to HW equation #1, Fr(T)=1-Fr(t), or 1-0.3 or 0.7. So, the frequency of the T allele is 0.7 or 70%.

1 Answers · Science & Mathematics · 07/12/2009