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PTC Tasting: Complete this exercise with a partner. PTC (phenylthiocarbamide) is a bitter-tasting chemical found in some plants. Similar chemicals are found in broccoli and grapefruit. PTC is not found is human food, but if it was, it would be a powerful deterrent to eating that food. PTC tasting is a dominant trait. People who can taste PTC very strongly are called "supertasters". Most people (about 70% of most populations) are "tasters", but about 30% of any random group usually is made up of "non-tasters". For this experiment, let's assume that your genotype for this trait is Tt (heterozygous) We will assume that your partner's genotype is tt (homozygous recessive) Complete the following Punnett Square with your and your partner's genotypes for PTC tasting: you Predictions: On partner t t T Application Questions: 1) Two taster parents produce both homozygous taster and non-taster children. What must be the genotype of both parents in order for this to happen? Accessibility: Investigate F5 2) Two non-taster parents can only have non-taster children. Why? t ‒‒ * Probability (percentage) of having PTC-tasting child? Non-PTC tasting child? F6 F7 PrtScn FB Home F9 % % End F10 Edit Header Focus Pgl

PTC Tasting: Complete this exercise with a partner. PTC (phenylthiocarbamide) is a bitter-tasting chemical found in some plants. Similar chemicals are found in broccoli and grapefruit. PTC is not found is human food, but if it was, it would be a powerful deterrent to eating that food. PTC tasting is a dominant trait. People who can taste PTC very strongly are called "supertasters". Most people (about 70% of most populations) are "tasters", but about 30% of any random group usually is made up of "non-tasters". For this experiment, let's assume that your genotype for this trait is Tt (heterozygous) We will assume that your partner's genotype is tt (homozygous recessive) Complete the following Punnett Square with your and your partner's genotypes for PTC tasting: you Predictions: On partner t t T Application Questions: 1) Two taster parents produce both homozygous taster and non-taster children. What must be the genotype of both parents in order for this to happen? Accessibility: Investigate F5 2) Two non-taster parents can only have non-taster children. Why? t ‒‒ * Probability (percentage) of having PTC-tasting child? Non-PTC tasting child? F6 F7 PrtScn FB Home F9 % % End F10 Edit Header Focus Pgl

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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PTC Tasting: Complete this exercise with a partner. PTC (phenylthiocarbamide) is a bitter-tasting chemical found in some plants. Similar chemicals are found in broccoli and grapefruit. PTC is not found is human food, but if it was, it would be a powerful deterrent to eating that food. PTC tasting is a dominant trait. People who can taste PTC very strongly are called "supertasters". Most people (about 70% of most populations) are "tasters", but about 30% of any random group usually is made up of "non-tasters". For this experiment, let's assume that your genotype for this trait is Tt (heterozygous) We will assume that your partner's genotype is tt (homozygous recessive) Complete the following Punnett Square with your and your partner's genotypes for PTC tasting: Predictions: On you partner F4 t t Application Questions: 1) Two taster parents produce both homozygous taster and non-taster children. What must be the genotype of both parents in order for this to happen? T Accessibility: Investigate 2) Two non-taster parents can only have non-taster children. Why? F5 t ☀ Probability (percentage) of having PTC-tasting child? Non-PTC tasting child? F6 F7 PrtScn FB Home F9 % % End F10 Edit Header DFocus Pgl
Transcribed Image Text:PTC Tasting: Complete this exercise with a partner. PTC (phenylthiocarbamide) is a bitter-tasting chemical found in some plants. Similar chemicals are found in broccoli and grapefruit. PTC is not found is human food, but if it was, it would be a powerful deterrent to eating that food. PTC tasting is a dominant trait. People who can taste PTC very strongly are called "supertasters". Most people (about 70% of most populations) are "tasters", but about 30% of any random group usually is made up of "non-tasters". For this experiment, let's assume that your genotype for this trait is Tt (heterozygous) We will assume that your partner's genotype is tt (homozygous recessive) Complete the following Punnett Square with your and your partner's genotypes for PTC tasting: Predictions: On you partner F4 t t Application Questions: 1) Two taster parents produce both homozygous taster and non-taster children. What must be the genotype of both parents in order for this to happen? T Accessibility: Investigate 2) Two non-taster parents can only have non-taster children. Why? F5 t ☀ Probability (percentage) of having PTC-tasting child? Non-PTC tasting child? F6 F7 PrtScn FB Home F9 % % End F10 Edit Header DFocus Pgl
4, Application Questions: 1) Two taster parents produce both homozygous taster and non-taster children. What must be the genotype of both parents in order for this to happen? F3 2) Two non-taster parents can only have non-taster children. Why ? Text Predictions: On 3) Can two homozygous taster parents have non-taster children? Why or Why not? 4 R Accessibility: Investigate F4 I F DII % 5 T F5 G -0 ^ 6 F6 Y - H F7 & 7 PrtScn U FB ★ J Home F9 ( 69 End K FIC
Transcribed Image Text:4, Application Questions: 1) Two taster parents produce both homozygous taster and non-taster children. What must be the genotype of both parents in order for this to happen? F3 2) Two non-taster parents can only have non-taster children. Why ? Text Predictions: On 3) Can two homozygous taster parents have non-taster children? Why or Why not? 4 R Accessibility: Investigate F4 I F DII % 5 T F5 G -0 ^ 6 F6 Y - H F7 & 7 PrtScn U FB ★ J Home F9 ( 69 End K FIC
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