EBK BIOLOGY
6th Edition
ISBN: 8220106777640
Author: Maier
Publisher: PEARSON
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Chapter 9, Problem 2AAATB
Summary Introduction
To review:
A comparison between two people with Intelligence quotients of 90 and 120 and the reason for the higher IQ is stranger genes of intelligence.
Introduction:
The quantitative traits are the measured
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Table 7.1: Your genetic traits.
Your probable
genotype(s)
(use only the letter
combinations that apply)
Your phenotype
(list what you look like)
Traits
(alleles)
Almond
Straight thumbs
1. Eye shape (R, r)
2. Hitcher's Thumb (H, h)
3. Earlobes (D, d)
Free
4. Interlocking Fingers (I, i)
Left thumb over right
Widows Peak
5. Widow's Peak (F, f)
6. Face Shape (G, g)
Oval
7. Eye Color (B, b)
Brown
8. Chin Shape (J, j)
Round
Dimples
Brown
9. Dimples (A, a)
10. Hair Color (K, k)
Curly
11. Hair Texture (T, t)
12. PTC Taster (Q, q)
Please use the attached photo to answer the following questions:
1. Is a widow’s peak a dominant or recessive trait?
2. Give reasons for your answer
In a class with 50 students, 30 students come from single parent home, 37 students live with their biological mothers in the house and 23 live with their biological father in the house. How man live with both biological parents if there are 5 who live with adopted parents?
Chapter 9 Solutions
EBK BIOLOGY
Ch. 9 - Is a round yellow pea seed (genotype Rr Y y) an...Ch. 9 - What factors cause quantitative variation in a...Ch. 9 - The DNA profile below is from a mother, a father,...Ch. 9 - Prob. 4LTBCh. 9 - Prob. 5LTBCh. 9 - Prob. 6LTBCh. 9 - Prob. 7LTBCh. 9 - Prob. 8LTBCh. 9 - Add labels to the figure that follows, which...Ch. 9 - Prob. 10LTB
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- Using the information and data from the 2 photos, answer the last question on the bottom of the second page. Please answer in detail and accurately. The question asks: “Did your results from the coin tosses support your prediction from the Punnett Square? Specify the data you used.”arrow_forwardI'm having trouble finding the dependent and independent variables of this scenaro: Average IQ scores for young school children are known to be 100 (SD = 15). However, the literature indicates that children’s intelligence may be decreased if their mothers have German measles during pregnancy. Using hospital records, a researcher obtained a sample of n = 25 school children whose mothers all had German measles during their pregnancies. Do the data indicate that children born to mothers who had German measles during the pregnancy have significantly lower IQ scores than typical young school children?arrow_forwardPlease solvearrow_forward
- A personality psychologist is interested if being a snob is heritable. To answer this question a personality psychologist recruits a huge sample of 2,593 identical twins and found that identical twins were similar in how snobby they were with an effect size of r=0.6. They also recruit a huge sample of 1845 fraternal twins and found that fraternal twins were also similar in how snobby they were with an effect size of r=0.4. Calculate the heritability coefficient for being a snob.arrow_forwardLooking at hairline (widow's peak = H) and ear shape (ear lobes = E)... If a man who is HhEe has children with a woman who is also HhEe, what percentage of their children will be HhEe? Question 8 options: 6% 100% 19% 25% 56%arrow_forward2 Nerissa has 5 pink bows, 1 blue bow, and 4 purple bows in a box. She will randomly choose 1 bow from the box. What is the probability Nerissa will choose a purple bow? F G 1 H 10 3 5 Please explain your answer to get full credit.arrow_forward
- Farmer John decides to increase the weight of the eggs produced by his chickens. The average weight of his eggs is 50 grams. He knows that the heritability of egg weight is 0.5. He selects for chickens producing eggs that are 64 grams. The expected average weight of the resulting eggs is: 59 57 54 55 56arrow_forwardA trait has a heritability of 0.15. This suggests: Question 5 options: The phenotypic variance is due entirely to genetic variation. The phenotypic variance is due entirely to environmental factors. The environment plays a much larger role in the phenotypic variance relative to genetics. Both genetic and environmental factors play similar roles in the phenotypic variation. Genetics plays a much larger role in the phenotypic variance relative to the environment.arrow_forwardThe effects of poverty, stress, racism, or socioeconomic status have not been conflated with the effects of genetics or ancestry. True Falsearrow_forward
- A couple has three children, all of whom have brown eyes and blond hair. Both parents are heterozygous for brown eyes (Bb), but one is blond (rr) and the other is a redhead (Rr). What is the probability that the next child will be a brown-eyed redhead? For full credit, you must show all workarrow_forwardTrue or False: If the heritability of arm span is 0.68 in humans, then 68% of the length of a person’s arms is controlled by his/her genes. The remaining 32% is controlled by the environment.arrow_forwardUnattached earlobes is dominant to attached earlobes. Two parents, both with unattached earlobes, had a child with attached earlobes. What are the chances that their next child will have attached earlobes? 25% 50% 0% cannot be determined from this infoarrow_forward
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