EBK BIOLOGY
5th Edition
ISBN: 9780100667976
Author: Maier
Publisher: YUZU
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Chapter 7, Problem 10LTB
Summary Introduction
Introduction:
The quantitative traits are the measurable
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Heritability of a biological trait is best defined as which of the following?
a.
The proportion of variation in a trait that is specifically due to genes.
b.
The proportion of variation in a trait that is due to the environment and genes
c.
The proportion of variation in a trait that is only due to dominant additive genetic variance.
d.
The proportion of variation in a trait due to developmental effects.
Saying that a quantitative trait follows a continuum means thata. the numerical value for the trait increases with the age ofthe individual.b. environmental effects are additive.c. the phenotypes for the trait are continuous and do not fallinto discrete categories.d. the trait continuously changes during the life of an individual.
A gene for a particular trait that is expressed when two copies (homozygous) or just one copy of the same allele are present (heterozygous), is called a(n):
A. Dominant trait.
B. Codominant trait.
C. Incompletely dominant trait.
D. Recessive trait.
E. Multiple allele.
Chapter 7 Solutions
EBK BIOLOGY
Ch. 7 - What is the relationship between genotype and...Ch. 7 - Prob. 2LTBCh. 7 - Prob. 3LTBCh. 7 - Prob. 4LTBCh. 7 - Prob. 5LTBCh. 7 - Scientists have recently developed a process by...Ch. 7 - What is the physical basis for the independent...Ch. 7 - Prob. 8LTBCh. 7 - Prob. 9LTBCh. 7 - Prob. 10LTB
Ch. 7 - Prob. 1GPCh. 7 - Prob. 2GPCh. 7 - Prob. 3GPCh. 7 - Prob. 4GPCh. 7 - Pfeiffer syndrome is a dominant genetic disease...Ch. 7 - Prob. 6GPCh. 7 - A cross between a pea plant that produces round...Ch. 7 - Prob. 8GPCh. 7 - The allele BRCA2 was identified in families with...Ch. 7 - Two parents both have brown eyes, but they have...Ch. 7 - Prob. 2AAATBCh. 7 - Prob. 3AAATBCh. 7 - Prob. 1CTSCh. 7 - Prob. 2CTSCh. 7 - Prob. 3CTS
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- In a population of squirrels in North Carolina, the heritability forbody weight is high. This means thata. body weight is primarily controlled by genes.b. the environment has little influence on body weight.c. the variance in body weight is mostly due to genetic variation.d. both a and b are correct.arrow_forwardHeritability: A. is the proportion of a trait in an individual that is explained by genes. B. decreases due to natural selection. C. is not influenced by the amount of environmental variance in a population. D. All of the abovearrow_forwardAll of the following are considered a quantitative trait, EXCEPT? a. A trait that has a continuously varying phenotype in the population. b. A trait that is influenced by both genetic and environmental factors. c. A trait that has multiple genes that contribute to the phenotype. d. A trait that is influenced by one gene that follows complete dominance inheritance patterns.arrow_forward
- When comparing asthma and cystic fibrosis, the proportion of variance in each illness that can be explained by genetic factors: a. Is different for different populations b. is highest in cystic fibrosis c. is the same for both illnesses Od. Is highest in asthmaarrow_forwardConsider a gene with two alleles, G and g, and heterozygote superiority. Which statement about the fitness of each genotype is correct? A. The fitnesses of the three genotypes would be the same B. The fitness of gg would be greater than that of wither Gg or GG C. There is not enough information to tell D. The fitness of GG would be greater than that of either Gg or gg E. The fitness of Gg would be greater than that of wither gg or GGarrow_forwardWhich of the following is the definition of the term named Dominant trait? a.Refers to genes that have identical alleles b.Genetic constitution of an organism c.Alternative form of a gene d.Trait expressed in the F1 generation e.Fundamental physical and functional unit of heredity f.Physical expression of traits of an organismarrow_forward
- Give typing answer with explanation and conclusion With regard to phenotypic and genetic liability variation, hip dislocation that is a multifactorial trait has: A. Discontinuous phenotypic variation. B. Continuous phenotypic variation. C. Discontinuous genetic liability variation. D. Continuous genetic liability variation. E. A and C F. A and D G. B and C H. B and Darrow_forwardAre the following statements regarding heritability true or false?A. Heritability applies to a specific population raised in aparticular environment.B. Heritability in the narrow sense takes into account all types ofgenetic variance. C. Heritability is a measure of the amount that genetics contributesto the outcome of a trait.arrow_forwardWhich of the following is false? a. The color of a fruit fly's eyes is a trait. b. The instructions for producing a trait are found in a gene that controls the physical expression of that trait. c. A gene can have different alleles that can specify different traits, such as red or brown eye color. d. The trait is influenced by the gene, independent of the environment. e. By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced.arrow_forward
- Give at least 3 species characteristics of human beings. What are "phenocopies"? Give at least three (3) specific examples. Examples 1. 2. 3. 3. Which do you think is the most important type of variation? Why? 4. Differentiate continuous from discontinuous trait. Give at least two (2) examples each. Continuous trait Discontinuous traitarrow_forwarda. Father of Genetics; studied pea plants; made the 3 laws of genetics - 1. Heredity inheritance, dominance, and segregation 2. Traits b. A trait that's STRONGER and covers over another; CAPITOL letter 3. Dominant c. The weaker trait, that we can't see when we have the stronger allele; 4. Recessive lower case letter 5. incomplete d. A characteristic or feature of a person, something about how they look. dominance e. The offspring of 2 different plants or animals 6. Hybrid f. Passing characteristics (traits) on from generation to generation 7. Gregor Mendel (grandma →mom → you) g. When the dominate allele isn't strong enough to be completely dominantarrow_forwardRelatives are phenotypically similar in part because relatives are genetically similar. Which of the following also contribute to the phenotypic resemblance between relatives and can confound estimating trait heritability? A. Similar microbiomes B. Similar environmental factors C. Similar phenotypic responses to environmental factors D. Non-random association between genotypes and environmental factors E. All of the above Please answer asap and in short and content not be palgarised pleasearrow_forward
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