Pleiotropy - Study guides, Class notes & Summaries
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Bio 110 Exam 3 Questions With Complete Solutions
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A gene that affects the expression of a second gene is an example of __________________. 
a) pleiotropy 
b) codominance 
c) epistasis 
d) polygenic inheritance 
e) incomplete dominance correct answer: c) epistasis 
 
__________ is an example of a character that is controlled by more than one gene (a quantitative character) and demonstrates a continuum of phenotypes. 
a) Pleiotropy 
b) Polygenic inheritance 
c) Epistasis 
d) Codominance 
e) Incomplete dominance correct answer: b) Polygenic inhe...
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Honors Biology First Semester Final Exam with Complete Solutions
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Honors Biology First Semester Final 
Exam with Complete Solutions 
 
What is the term for the process by which cells convert atmospheric nitrogen into a usable form 
for plants? 
 Nitrogen Fixation 
 
What is the name of the small RNA molecules that regulate gene expression by targeting mRNA 
for degradation? 
 MicroRNA (miRNA) 
 
What is the term for the process in which an organism produces offspring that are genetically 
identical to itself? 
 
 Asexual Reproduction 
 
What is the name of the...
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TTU Biology 1402 Exam 2- Dr. Held Latest Update Already Passed
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TTU Biology 1402 Exam 2- Dr. Held 
Latest Update Already Passed 
 
Karyotyping (#chromosome) -To determine if the patient has an abnormal # of chromosomes 
- "A photographic inventory of an individual's chromosomes." 
- ordered display of chromosomes, doubled. 
 
Criss- Cross Inheritance Sons inherit their X chromosome from their mother 
 
Codominance -The heterozygote expresses both traits (alleles). -"A" and "B" genes make 
structures (not enzymes)= sugar types. 
-Ex) Blood types (A,B, ...
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Lecture 2: Evolutionary and Mechanistic Theories
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Detailed notes explaining the dominating theories of ageing: evolutionary (mutation accumulation, antagonistic pleiotropy) and mechanistic (damage versus maintenance, hyperfunction).
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EVOLUTION MAKING SENSE OF LIFE REAL EXAM/ EVOLUTION MAKING SENSE OF LIFE REAL EXAM QUESTIONS AND VERIFIED ANSWERS 2024- 2025 ;LATEST UPDATE !!GRADED A+
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Evolution of the eye - ANSWER-1. Early chordates had light-sensitive 
eye-spots expressing photoreceptor genes 
2. Light-sensitive regions bulge outward to the sides of the head 
3. Patch folds inward into a cup, beneath unpigmented skin (lens 
placode) 
4. Surface becomes transparent, and lens evolves ability to focus an 
image 
5.Eyes become spherical and evolve greater acuity 
Constraints on adaptation - ANSWER-Laws of physics 
Existing genetic toolkit 
Pleiotropy (especially antagonistic ple...
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UCI BIO 93 FINAL EXAM 2024 WITH 100% CORRECT ANSWERS
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UCI BIO 93 FINAL EXAM 2024 WITH 100% CORRECT ANSWERS 
 
 
What is an example of incomplete dominance? - correct answer A red and white snapdragon making a pink offspring 
 
What is an example of co-dominance? - correct answer Blood cells. 
 
What is Pleiotropy? - correct answer When a gene affects more than 
one phenotypic character. 
 
What is the norm of reaction? - correct answer The range of phenotypic possibilities 
 
What are some example of polygenic inheritance? - correct answer Skin col...
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USMLE FINAL EXAM WITH 100% VERIFIED ANSWERS | LATEST UPDATED
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Which serum marker is best measured in MI? 
a) first 8 hours 
b) 8–24 hours 
c) 2–7 days 
a) troponin 
b) CK–MB 
C) LDH–1 
What is pleiotropy? 
A single gene mutation can have various phenotypic outcomes. 
E.g. RB gene#: retinoblastoma and osteosarcoma 
Where in the kidney can you find epithelial cells with a brush border? 
proximal tubule: enhances reabsorption 
Which 2 substances are present in a genotype male in early fetal life? 
TDF: testes differentation factor –> induces test...
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Ecology Exam 2 question and answers
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Ecology Exam 2 
Chapter 7 
1. Different forms of a particular gene are known as 
a. chromosomes. 
b. alleles. 
c. polygenic. 
d. pleiotropic. 
Answer: b 
2. A trait that is determined by multiple genes is referred to as 
a. polygenic. 
b. pleiotropic. 
c. homozygous. 
d. heterozygous. 
Answer: a 
3.Chickens with the dominant allele at the frizzle gene produce curly feathers, have very high 
body temperature, and lay few eggs. This is an example of 
a. polygenic traits. 
b. pleiotropy. 
c. epista...
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BIO 265 Exam 2 UH Manoa Justin Walguarney Questions and Answers 100% Verified
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A population was observed to increase from 5000 to 6000 individuals in one year, What is the rate of 
increase? - Rate of increase = 6000/5000 
Advantages of reproducing later in life? - More resources available for Individuals 
An allele that is advantageous early in life but will be deleterious later in life will be SELECTED because of 
greater contribution of the early classes. TRUE OR FALSE? - TRUE 
Another Simple Case assumption? - The rate at which a population increases is a simple multip...
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Ecology_Exam_2. questions and answers 100% verified
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Ecology Exam 2 
Chapter 7 
1. Different forms of a particular gene are known as 
a. chromosomes. 
b. alleles. 
c. polygenic. 
d. pleiotropic. 
Answer: b 
2. A trait that is determined by multiple genes is referred to as 
a. polygenic. 
b. pleiotropic. 
c. homozygous. 
d. heterozygous. 
Answer: a 
3.Chickens with the dominant allele at the frizzle gene produce curly feathers, have very high 
body temperature, and lay few eggs. This is an example of 
a. polygenic traits. 
b. pleiotropy. 
c. epista...
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