1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
omeli [17]
2 years ago
7

Phenylthiocarbamide (PTC), also known as phenylthiourea (PTU), has the unusual property that it either tastes very bitter or is

virtually tasteless, depending on the genetic makeup of the taster. There is a single gene which codes for a protein found in our tongues. PTC will bind with the protein if it present and a person will taste it. If the protein is not present, PTC will not bind and a person cannot taste it. The ability to taste PTC is often treated as a dominant genetic trait. The dominant allele, T, causes a person to be able to taste PTC, and the recessive allele is represented as t. Assume that a population is in Hardy-Weinberg equilibrium and 16 individuals out of 100 are unable to taste PTC.
What are the allele frequencies of T and t in this population?

A. The allele frequency of T is 0.80, and the allele frequency of t is 0.20
B. The allele frequency of T is 0.84, and the allele frequency of tis 0.16.
C. The allele frequency of T is 0.00, and the allele frequency of t is 0.40
D. The allele frequency of T is 0.50, and the allele frequency of t is 0.50.
Biology
1 answer:
tatiyna2 years ago
5 0

Answer:

B. The allele frequency of T is 0.84, and the allele frequency of t is 0.16.

Explanation:

The Hardy-Weinberg equation is:

p2 + 2pq + q2 = 1

Where:

p = the frequency of the dominant allele

q = the frequency of the recessive allele

1 = the total number of alleles

Given that 16 individuals out of 100 are unable to taste PTC, we can calculate that the frequency of the recessive allele, q, is 0.16. We can then use the Hardy-Weinberg equation to solve for the frequency of the dominant allele, p:

p2 + 2pq + q2 = 1

p2 + 2p(0.16) + (0.16)2 = 1

p2 + 0.32p + 0.0256 = 1

p2 + 0.32p - 0.9144 = 0

(p + 0.32)(p - 2.84) = 0

p = -0.32 or p = 2.84

Since the allele frequencies must add up to 1, we know that p cannot equal -0.32. This leaves us with p = 2.84. Therefore, the allele frequency of the dominant allele is 2.84, and the allele frequency of the recessive allele is 0.16.

You might be interested in
I need ONE MORE non-living thing that metabolizes.<br><br> I already have Viruses and Cars.
murzikaleks [220]
I believe you could use FIRE.

we consider an organism had metabolizing capability if it manage to absorb nutrients from substance, and secrete it.
Fire has similar feature with this (for example, if it got near woods, fire will consume the woods and got bigger from it, and secrete ash after it done)


6 0
3 years ago
Read 2 more answers
Cheetahs survived an event that brought them close to extinction. The few survivors repopulated the earth with the cheetahs we h
Annette [7]
I think the answer is B hope this helps

4 0
3 years ago
Read 2 more answers
Suppose a butterfly with 16 chromosomes is able to produce offspring. How many chromosomes would the offspring receive from each
Stella [2.4K]

The irght answer is 8.

Each parent will give half of its chromosomes to its offspring through the gametes (which are haploid cells, containing n chromosomes) which will then fuse (male and female gametes) to form a diploid 2n chromosome cell and will eventually give rise to a new individual.

So each parent will give 8 of these chromosomes to their offspring.

5 0
3 years ago
Read 2 more answers
Which of the following is the best definition of empirical evidence?
tankabanditka [31]
C is what I would choose
8 0
3 years ago
Read 2 more answers
Why do dolphins kill more people every year than sharks?
Alik [6]

Answer:

Dolphins use their strong snouts as a powerful weapon to ram sharks, targeting their soft underbellies and gills to cause injuries. Sharks pose less of a threat to larger members of the dolphin family. Indeed, orcas are the top predator in the ocean and small sharks are a target for some populations.

8 0
2 years ago
Other questions:
  • The seismic waves that travel through Earth’s interior are _____ waves.
    5·1 answer
  • A researcher would most likely employ an _______ in order to see which areas of the brain show the most activity while listening
    8·1 answer
  • Predict the chemical formula of butyne, having one carbon-carbon triple bond.<br><br>C4H8
    6·1 answer
  • Where is the chromatin located?
    8·1 answer
  • What gives a cell structure and provides support for its internal organelles
    8·1 answer
  • How many teeth do leopard frogs have?
    13·1 answer
  • What are the non-living components of an ecosystem?
    9·1 answer
  • What type of cell is Cell City and what type of cell does Celley come from?
    6·1 answer
  • A rise in blood glucose level will trigger all these responses except __________.
    12·1 answer
  • Which of the following is NOT one of the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!