Who are homozygous for tongue-rolling

Assignment Help Biology
Reference no: EM13113139

In humans, there is a gene that controls formation of muscles in the tongue that allow people with those muscles to roll their tongues, while people who lack those muscles cannot roll their tongues. The ability to roll one's tongue is dominant over non-rolling. The ability to taste certain substances is also genetically controlled. For example, there is a substance called phenylthiocarbamate, which some people can taste, while others cannot. Let's let R represent tongue rolling, r represent a non-roller, T represent ability to taste PTC, and t represent non-tasting.

Suppose a woman who is both a homozygous tongue-roller and a non-PTC-taster marries a man who is a heterozygous tongue roller and is a PTC taster, and they have 12 children, how many of those 12 would you expect to be non-tasters, who are homozygous for tongue-rolling?

Reference no: EM13113139

Caught in the food web- complexity made simple

Caught in the food web: complexity made simple-Write a three to five page paper which describes the Pomeroy article and search for more recent findings on the topic (e.g., re

Describe the molecular-genetic basis for these observations

In the lab you observe a tumor culture that first responds to a cancer drug by shrinking, losing cells that die from the effects of the drug. Later the tumor stops shrinking a

Hash table contains tablesize positions

If a hash table contains tablesize positions and n records currently occupy the table, the load factor lf is defined as n/tablesize. Suppose a hash function uniformly distribu

Why is respiration slower on glutamate than on succinate

This one requires that you think about what limits the respiration rates in states IV, III, and in uncoupled mitochondria. Which of the following situations should produce t

What is the function of amylase

What were your controls for this experiment? What did they demonstrate? Why was saliva included in this experiment? What is the function of amylase? What does amylase do

Describe nutrient density and why it is important

Describe nutrient density & Why it is important. Why is food we eat today generally less nutrient dense than food are parents and grandparents ate? How can we use nutrient den

Yields the cua codon for leucine

1. The difference in RNA bases compared to DNA bases is A) RNA contains A instead of T. D) RNA contains A instead of U. B) RNA contains U instead of G. E) None of the above. 

Question about law of thermodynamics

Assume you are vegetarian, and you wish to make the case to your non-vegetarian but environmentally conscious friend that eating vegetarian is more environmentally friendly.


Write a Review

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd