EBK BIOLOGY:SCIENCE F/LIFE
6th Edition
ISBN: 9780134819167
Author: BELK
Publisher: PEARSON
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Chapter 9, Problem 4LTB
Summary Introduction
Introduction:
The morphological features represented by the organism are called traits. The genes present in the genetic material control the traits. There are two types of traits. These are quantitative and qualitative traits. The continuous traits that are found in a large group of organisms are called quantitative traits. The quantitative trait occurs due to multiple genes coding for a single trait.
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Students have asked these similar questions
Which of the following is TRUE regarding quantitative traits?
they are always determined by partially dominant alleles, which yield intermediate trait values
they are often influenced by the action of many genes
they are not heritable
they are often normally distributed in a population
they are often influenced by environmental effects
True or False: p + q = 1 is the difference of individuals alleles within a given population that is probably 100%
Which of the following is NOT an example of a quantitative trait?
Tail length
Eye color
Height
Weight
All of the above are examples.
Chapter 9 Solutions
EBK BIOLOGY:SCIENCE F/LIFE
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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- Many genetic disorders, such as cystic fibrosis and sickle-cell disease are due to mutations in a recessive allele. You have sampled an isolated population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Using that 36%, calculate: 1g. the frequency of the recessive phenotype if "A" is completely dominant over "a” (round to the nearest hundredth)arrow_forwardConsider the Biology student traits data in the table above. Calculate the percentage of Biology students who exhibit the free earlobe phenotype.arrow_forwardA couple, Jane and Biron, tell you that Jane's sister Maureen has Hurler syndrome, which is a monogenic disease caused by a recessive allele. Neither Jane or either of her parents are affected. They are concerned that they might have a child with the same disorder. Knowing that the frequency of affected individuals is 1 in 100,000, what is the probability that this couple's first child will have Hurler syndrome? Show workarrow_forward
- There are 1024 individuals with the genotype GG, 512 individuals with a genotype Gg, and 64 individuals with the genotype gg. Useless information to find the dominant allele frequency the recessive allele frequency the homozygous dominant frequency the heterozygous frequency and the homozygous recessive frequencyarrow_forwardWhich of the following is a form of a heritable trait that enhances an individual’s fitness? Adaptation Lineage Fitnessarrow_forwardTrue or false: If false, please make it a correct statement. A rancher uses a particular chicken for breeding purposes because, on average, she observed that the chicken laid more eggs than other chickens. The rancher selecting the desirable trait would be considered an example of natural selection.arrow_forward
- Forensic anthropologists concentrate on ________ variables because they are called on by law enforcement agencies to identify sex, age, stature, and ancestry from skeletal remains. Group of answer choices social genotypic cultural genetic phenotypicarrow_forwardMany genetic disorders, such as cystic fibrosis and sickle-cell disease are due to mutations in a recessive allele. You have sampled an isolated population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Using that 36%, calculate: 1f. the frequency of the dominant phenotype if "A" is completely dominant over "a” (round to the nearest hundredth)arrow_forwardPart A: What is the frequency of the heterozygous genotype if the homozygous genotype frequencies are 0.1385 (BB) and 0.5897 (bb)? You must show your work for credit! Part B: What is the frequency of the B and b alleles in the population? You must show your work for credit!arrow_forward
- Give 2 sample of trait based on classification: Morphological trait Physiological trait Behavioral trait Quantitative trait Qualitative Traitarrow_forwardThe effects of poverty, stress, racism, or socioeconomic status have not been conflated with the effects of genetics or ancestry. True Falsearrow_forwardSixteen percent of a population is unable to taste the chemical PTC. These non-tasters are recessive for the tasting gene. What percentage of individuals in the population are tasters? ______________ What is the frequency of the dominant and recessive allele? _____________________________ What percentage of the population are heterozygous for the trait? ___________________arrow_forward
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