ZuoTi.Pro
Question

The ability to taste the chemical phenylthiocarbamide (PTC) results from a dominant allele (T) and not...

The ability to taste the chemical phenylthiocarbamide (PTC) results from a dominant allele (T) and not being able to taste PTC is the result of having two recessive alleles (t). The ability to roll one's tongue is the result of a dominant allele on a second gene (R). Consider that two parents who are both taster, rollers have a child that is a non-taster, non-roller. What is the probability that their next child will have the same phenotype as the parents?

science   biology   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

The probability of having a child same as the phenotype of the parents is only 25 percent.

When we draw a punette square it gives us the explanation that although parents may be having the traits of dominant alleles but their child always has a probability of having phenotype from alleles of both dominant traits is 25% as well as 25% chances of developing the recessive traits from both the alleles.

0 0
Add a comment
Know the answer?
Add Answer to:
The ability to taste the chemical phenylthiocarbamide (PTC) results from a dominant allele (T) and not...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • The ability to roll one’s tongue(R) is dominant over non-rolling (r). The ability to taste PTC...

    The ability to roll one’s tongue(R) is dominant over non-rolling (r). The ability to taste PTC (T) is dominant over non-taster (t). Suppose a woman who is both homozygous tongue-roller and a non-taster marries a man who is heterozygous tongue-roller and is a PTC- taster, and have three children: a homozygous tongue-roller who is also a PTC- taster, a heterozygous tongue-roller who is also a taster, and a heterozygous tongue-roller who is a non-taster. a.If these parents would have a...

  • 5. Certain people are able to taste the chemical phenylthiocarbamide (PTC) when it is present in...

    5. Certain people are able to taste the chemical phenylthiocarbamide (PTC) when it is present in wet filter paper. These people are called 'tasters'. Others are unable to detect PTC and have the 'nontaster' phenotype. PTC tasting is an example of variation in sensory perception, and the genetic basis is thought to be rather simple. The ability to taste PTC is attributed to a dominant allele, denoted T, located on chromosome 7. The recessive allele is designated t. From analysis...

  • The compound phenylthiocarbamide (PTC) tastes very bitter to most people. The inability to taste PTC is...

    The compound phenylthiocarbamide (PTC) tastes very bitter to most people. The inability to taste PTC is controlled by a single autosomal recessive allele. In the American white population, about 70% can taste PTC while 30% cannot (are non-tasters). Estimate the frequencies of the Taster (T) and non-taster (t) alleles in this population. How common are carriers (those carrying the allele, but not displaying the phenotype) of the non-taster allele? What assumption did you make to carry out your calculations how...

  • The ability to taste the bitter compound phenylthiocarbamide (PTC) is an autosomal dominant trait. The inability...

    The ability to taste the bitter compound phenylthiocarbamide (PTC) is an autosomal dominant trait. The inability to taste PTC is a recessive condition. In a sample of 500 people, 391 have the ability to taste PTC and 109 do not. Calculate the frequency of: A. the recessive allele. Express your answer using two decimal places. B.the dominant allele. Express your answer using two decimal places. C.the homozygous dominant genotype. Express your answer using two decimal places. D.the homozygous recessive genotype....

  • Phenylthiocarbamide (PTC) is an organosulfur thiourea that has an excessively bitter taste to some individuals and...

    Phenylthiocarbamide (PTC) is an organosulfur thiourea that has an excessively bitter taste to some individuals and is virtually tasteless to others.   This taste response is due to a single gene, where the tasting allele (T) is dominant to the non-tasting allele (t). a. If two tasters that are both heterozygous at the tasting locus have 6 children, what is the probability that they are: non-taster, non-taster, taster, taster, taster and taster in that exact order? b. What is the probability...

  • 2. Ability to taste phenylthiocarbamide (PTC) is mostly determined by the gene PTC. The letters T...

    2. Ability to taste phenylthiocarbamide (PTC) is mostly determined by the gene PTC. The letters T and t are used here to simplify analysis. TT individuals taste a strong bitter taste; Tt people experience a slightly bitter taste: tt individuals taste nothing. A fifth-grade class of 20 students tastes PTC that has been applied to small pieces of paper, rating the experience as “very yucky” (TT), “I can taste it” (Tt), and “I can’t taste it” (tt). For HW, the...

  • Lets let R represents tongue-rolling, r represent a non -roller, T represent ability to taste PTC,...

    Lets let R represents tongue-rolling, r represent a non -roller, T represent ability to taste PTC, and t represent non tasting. Suppose a women who is both a heterozygous tongue roller and a non PTC taster marries a man who is a heterozygous tongue roller and is a homozygous PTC taster. What will their children's phenotypes ratio be?

  • 6. About 70% of Americans get a bitter taste from the substance called phenylthiocarbamide (PTC). It...

    6. About 70% of Americans get a bitter taste from the substance called phenylthiocarbamide (PTC). It is tasteless to the rest. The "taster" allele is dominant to non-taster. Also, normal skin pigmentation is dominant to albino. A normally pigmented woman who is taste-blind for PTC has an albino-taster father. She marries an albino man who is a taster, though the man's mother is a non-taster. 1 pt             A. What are the genotypes of the woman and man?             B. What phenotypes...

  • Please answer both pages On a separate piece of paper, answer the Genetics Problems allele (a)...

    Please answer both pages On a separate piece of paper, answer the Genetics Problems allele (a) that is recessive to the ailele for nomal metabolism o following questions. Be sure to SHOW ALL WORK c. If Sally of Sally, her mother, hor father, and her brother humans, the allele for six If both that their frst child will have alkaptonuria? ngers, what is the probabity that their first child wil be 'normar (have five percentage of their children should to...

  • Questions 1-6 BIOL 366 Mono and Dihybrid Crosses Recitation Problem Set Directions: For problems 1-6, do...

    Questions 1-6 BIOL 366 Mono and Dihybrid Crosses Recitation Problem Set Directions: For problems 1-6, do the following A. List how many genes are involved B. List how many alleles are involved. C. Identify symbols and genotypes / phenotypes D. List the genotypes of the parents E. Diagram and complete a Punnett square F. Give the phenotype percentages/ration of the offspring 1. In dogs, erect ears (E) is dominate over droopy ears (e). What are the results if two heterozygous...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT