WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 7, Problem 12MC
Summary Introduction
Introduction:
Usually a single gene influences expression of a single trait. But in many cases, one gene can influence the expression of more than one characteristic.
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Check out a sample textbook solutionStudents have asked these similar questions
If a single expressed gene can affect multiple traits at once, what would be the most precise manner of referring to this phenomenon?
a) Polygenic.
b) Monogenic.
c) Pleiotropic.
d) Polytropic.
9)If a gene shows classic dominance (one allele is dominant, one is allele is recessive), what is the phenotype of a heterozygote?
a)Recessive phenotype
b)Unable to determine without more information
c)Dominant phenotype
d)Mixed phenotype
A classical example of multiple alleles is
A)ABO blood types in humans.B)height in garden peas.C)environmental factors on the ability of genes to express themselves.D)pink flowers in heterozygous snapdragons.E)albinism in humans and animals.
Chapter 7 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
Ch. 7 - Prob. 1SACh. 7 - Prob. 2SACh. 7 - Prob. 3SACh. 7 - Prob. 4SACh. 7 - Prob. 5SACh. 7 - Prob. 6SACh. 7 - Prob. 7SACh. 7 - Prob. 8SACh. 7 - Prob. 9SACh. 7 - Prob. 10SA
Ch. 7 - Prob. 11SACh. 7 - Prob. 12SACh. 7 - Prob. 13SACh. 7 - Prob. 14SACh. 7 - Prob. 15SACh. 7 - Prob. 1MCCh. 7 - Prob. 2MCCh. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Prob. 5MCCh. 7 - Prob. 6MCCh. 7 - Prob. 7MCCh. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MCCh. 7 - Prob. 11MCCh. 7 - Prob. 12MCCh. 7 - Prob. 13MCCh. 7 - Prob. 14MCCh. 7 - Prob. 15MCCh. 7 - Prob. 16MC
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which phenomenon explains differences in the inheritance patterns of the appearance of a chin beard between males and females of certain species of goats, even when their genotypes are the same? A) sex-limited trait B) sex-influenced trait C) incomplete penetrance D) variable expressivity E) lethal allelearrow_forwardIn some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette (black and white spotted). 10pts a) What is the genotype for black chickens? b) What is the genotype for white chickens? c) What is the genotype for erminette chickens? d) Two erminette chickens were crossed. Show the Punnett square. e) What’s the probability they would have a black chick? ____% f) What’s the probability they would have a white chick? ____% g) What’s the probability they would have erminette chick? ___ %arrow_forwardWhich of the following is an example of how genotype and environmental factors can work together to determine phenotype? O a) Temperature-senitive mutations O b) Nutritional factors resulting in epigenetic modification of genes c) Sex-influenced inheritance O d) Both A and B O e) Both A and Carrow_forward
- If you have a recessive phenotype for a given trait, but neither of your parents has that phenotype, what can you say about the genotype of your parents for that trait? A) Both of your parents must be homozygous dominant B) Both of your parents have to be hetorozygous C) One of your parents might be homozygous dominant but the other has to be hetorozygous D) Both of your parents have to be homozygous recessivearrow_forwardWhat can explain the phenomenon where the same genotype might give rise to different phenotypes? A) pleiotropy B) penetrance and expressivity C) complete dominance D) codominance E) Incomplete dominance Explain each answer.arrow_forward1)If both parents are heterozygous, which genotypes are possible for their offspring? choose all that apply A)homozygous dominant B)heterozygous C)homozygous recessive D)more information would be neededarrow_forward
- Heterosis is a) the appearance of spontaneous mutations. b) a method of artificial breeding that reduces heterozygosity. c) caused by inbreeding. d) when offspring have a phenotypic improvement over their parents.arrow_forward18) Hydrangea plants of the same genotype are planted in a large flower garden. Some of the plants produce blue flowers and others pink flowers. This can be best explained by which of the following? A) multiple alleles must involved B) the allele for blue hydrangea is completely dominant over the allele for pink hydrangea C) the genes for flower color experience epistatic interactions D) environmental factors such as soil pH affect the phenotype inont ollolearrow_forward2)If an individual that is homozygous dominant for a gene has offspring with an individual that is homozygous recessive for that gene, which genotypes are possible for their offspring? choose all that apply A)homozygous dominant B)heterozygous C)homozygous recessive D)more information would be neededarrow_forward
- A trait with a high concordance value in MZ twins has a a) significant environmental component. b) significant random component. c) significant inherited component. d) no conclusions can be drawn in this case.arrow_forwardWhich statement is false when considering alleles and genes? a) A given gene can have many different possible alleles. b) Alleles are alternative forms or variants of genes. c) Individuals can be homozygous or heterozygous, and this refers to which alleles they have for a particular gene. d) An allele is the same thing as a gene.arrow_forwardAn organism that is heterozygous for a recessive and dominant allele will display what phenotype? A) Something completely different from the dominant and recessive phenotypes B) Recessive C) A mixture of the dominant and recessive phenotypes D) Dominant E) A dysfunctional phenotypearrow_forward
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