Genetic drift Study guides, Class notes & Summaries
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SCI 200 Final Exam Questions and Answers Rated A+
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What is the haploid number of chromosomes for humans? - 23 
 
Mitosis - Prophase, metaphase, anaphase, telophase 
 
What are the parts of the cell (plasma) membrane? - Phospholipid, protein, and carbohydrate 
 
What stage of the cell cycle does DNA replication occur? - S Phase 
 
Endocytosis - Cell membrane surrounds a molecule (like a protein) and forms a vesicle around the molecule which is brought inside the cell 
 
Cell - Smallest identifiable unit capable of carrying on th...
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Bio 212 Final Exam Questions With Complete Solutions
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evolution Correct Answer-change in the genetic composition of a population from generation to generation 
 
descent with modification Correct Answer-the passing on of traits from parent organisms to their offspring 
 
Microevolution Correct Answer-evolutionary change within a species or small group of organisms, especially over a short period. 
 
genetic drift Correct Answer-random change in allele frequencies that occurs in small populations 
 
natural selection Correct Answer-A natural process...
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McMaster Bio 1M03: Exam 2024/2025 Questions with all the correct Answers (Real Actual Exam).
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McMaster Bio 1M03: Exam 2024/2025 Questions with all the correct Answers (Real Actual Exam). 
Why might Pasteur's experiment be inconclusive? - ANS - The swan-necked flask 
broth may not support cell growth, or the broth was poisoned. Experiment did not 
confirm hypothesis that all cells come from pre-existing cells 
Why are replicates important in experiments? - ANS - To ensure that results were 
not achieved by random chance 
What is the definition of a replicate? - ANS - Unit that shares a c...
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Marine Biology 250 (Exam 1, 2, and Review) || with Errorless Solutions 100%.
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What requirements must be met in order for natural selection to occur? Think of traits. 
 
a. Variable and responsive to environmental changes 
 
b. Beneficial and heritable 
 
c. Heritable and adaptive 
 
d. Adaptive and allow for acclimatization correct answers B 
 
What is the ultimate source of genetic variation in a population? 
 
a. Natural selection 
 
b. Mutation 
 
c. Migration 
 
d. Drift 
 
e. Reproduction correct answers B 
 
Which of the following scenarios is an example of genetic ...
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Bio 152- Evolution Exam Questions with Complete Solutions
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Natural Selection is: CORRECT ANSWER a process leading to differential reproductive successes among members of a population 
 
Cactus-like plants adapted for desert or dry environments are succulent (have fleshy, juicy stems) and have spines (modified leaves). Succulents can be found to occur around the world, but are classified into a number of very different families of plants based on other characteristics. That so many different kinds of succulents exist is an example of: CORRECT ANSWER conv...
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Test Bank For Anatomy & Physiology The Unity Of FormAnd Function 7th Edition by Kenneth S. Saladin
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Chapter 04 Genetics of Cellular Function Answer Key True / False Questions 
1. Naked DNA is called chromatin. 
FALSE 
 Accessibility: Keyboard Navigation Blooms Level: 1. Remember Gradable: automatic 
HAPS Objective: C12.04 Analyze the interrelationships among chromatin, chromosomes and chromatids. HAPS Topic: Module C12 Somatic cell division. Learning Outcome: 04.01b Explain how DNA and proteins are organized to form the chromosomes. 
Section: 04.01 Topic: Nucleic acids: DNA and RNA 
2. DNA is ...
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McMaster Bio 1M03: Exam 2024/2025 Questions with all the correct Answers (Real Actual Exam).
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McMaster Bio 1M03: Exam 2024/2025 Questions with all the correct Answers (Real Actual Exam). 
Why might Pasteur's experiment be inconclusive? - ANS - The swan-necked flask 
broth may not support cell growth, or the broth was poisoned. Experiment did not 
confirm hypothesis that all cells come from pre-existing cells 
Why are replicates important in experiments? - ANS - To ensure that results were 
not achieved by random chance 
What is the definition of a replicate? - ANS - Unit that shares a c...
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ASU BIO 345 Exam 1 Questions With Complete Solutions
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D ≈ 0.49 
A population of butterflies comes in three color morphs; orange (A1A1), black (A2A2), or orange with black spots (A1A2). You find that the frequency of orange butterflies is 0.49, and the frequency of black butterflies is 0.36. You do not know if the population is currently in HWE. What would you expect the frequency of spotted butterflies to be, if the population is under Hardy-Weinberg equilibrium? 
A ≈ 0.42 
B ≈ 0.15 
C ≈ 0.84 
D ≈ 0.49 
B. Migration is low and the populat...
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Biology Final Review| 286 Questions| With Complete Solutions
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A thin-shelled crab can more readily move to escape a predator than can a thick-shelled crab, but it is 
more vulnerable to predators that drill through the shell. Because of these opposing forces, shell thickness 
for many types of crabs has remained within a narrow range over a long time. This would be an example of 
_____________________________ selection correct answer: stabilizing 
 
What is genetic change in a population over time? correct answer: evolution 
 
What is the mode of natural...
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Anthropology Exam 1 WVU Latest Update Graded A+
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Anthropology Exam 1 WVU Latest 
 
Update Graded A+ 
 
the measure of success under natural selection is 
a. how many offspring are produced 
b. whether an individual lives or dies 
 
c. how well adapted an individual is 
d. how well adapted the species is a. how many offspring are produced 
 
founder effect: 
a. is a type of genetic drift that results when only a small number of individuals from a larger 
propulsion starts a new population 
 
b. is a for of gene flow in which muted genes are rec...
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