Question 6 In a population, there is a single-gene, autosomal recessive disease with 2 alleles, D and d. The disease is deadly and kills patients at an early age. Over time, natural selection will V [ Select ] the frequency of the d allele in the gene pool. But as this occurs, a tend to increase tend to reduce fraction of d alleles will become hidden from selection in carriers have no effect on

Question 6 In a population, there is a single-gene, autosomal recessive disease with 2 alleles, D and d. The disease is deadly and kills patients at an early age. Over time, natural selection will V [ Select ] the frequency of the d allele in the gene pool. But as this occurs, a tend to increase tend to reduce fraction of d alleles will become hidden from selection in carriers have no effect on

Basic Clinical Laboratory Techniques 6E

6th Edition

ISBN:9781133893943

Author:ESTRIDGE

Publisher:ESTRIDGE

Chapter2: Basic Hematology

Section2.3: Microhematocrit

Problem 3.1CS

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QUESTION 23 Allele frequencies for eye color in a population of hippogriffs is p=0.73. How many individuals would you expect to be heterozygous in a population 150? (Assume HWE)
QUESTION 42 Two different populations that have a high degree of gene flow are expected to… a. have similar levels of heterozygosity. b. have an FST close to 1. c. be completely isolated from each other. d. vary in allele frequency from one another.
Question 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of the homozygous recessive condition, please calculate the following: A) The frequency of the recessive allele. B) The frequency of the dominant allele. C) The frequency of heterozygous individuals. Question 4 Within a population of butterflies, the colour brown (B) is dominant over the colour white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A) The percentage of butterflies in the population that are heterozygous. B) The frequency of homozygous dominant individuals. Question 5 A rather large population of organisms have 396 red-sided individuals…
QUESTION 38 All of the following are true statements about the Hardy-Weinberg Equilibrium (HWE) principle, EXCEPT: a. HWE concludes that allele frequencies change over time. b. HWE principle assumes that all of the individuals in your population survive and reproduce equally. c. HWE concludes that if given the allele frequencies we can then accurately predict the genotype frequencies in the population. d. HWE principle assumes large, completely isolated populations.
Question 5 A rather large population of organisms have 396 red-sided individuals and 557 tan-sided individuals. Assume that red is totally recessive. Please calculate the following: a) The allele frequencies of each allele b) The expected genotype frequencies. c) The number of heterozygous individuals that you would predict to be in this population. d) The expected phenotype frequencies. e) Conditions happen to be really good this year for breeding and next year there are 1,245 offspring. Assuming that all of the Hardy-Weinberg conditions are met, how many of these would you expect to be red-sided and how many tan-sided?
Question 10 : Animal: Northern Raccoon. Scientific name: Procyon Lotor a) Current status of the species and any threats to the population of the species. b) Is it a protected species? Endangered? Threatened? Why? c) In this section, including what can be done to protect and preserve this species. *If the answer makes sense and is explained in detail, I'll give up a thumb up. Promise!
QUESTION 14 Darwin’s finches on the Galapagos Islands are a group of species of finches. One of the major features noted is the variation in beak depth. We spent some time talking about the variation in the ground finch population and how that changed overtime and how that change corresponded to changes in environmental conditions, which affected food item characteristics and abundance. The changes in beak depth over time is a result of… a. natural selection b. gene flow c. sexual selection d. artificial selection
Question 21>In 1668, Francesco Redi performed a series of experiments on spontaneous generation. He began by putting similar pieces of meat into eight identical jars. Four jars were left open to the air, and four were sealed. He then did the same experiment with one variation: Instead of sealing four of the jars completely, he covered them with gauze (the gauze excluded the flies while allowing the meat to be exposed to air). In both experiments, he monitored the jars and recorded whether or not maggots (young flies) appeared in the meat.What hypothesis was being tested in the initial experiment with open versus sealed jars?A.The type of meat used affects the likelihood of spontaneous generation.B.Spontaneous generation can occur only if meat is exposed to air.C.Spontaneous generation is more likely during the long days of summer.D.Maggots do not arise spontaneously, but from eggs laid by adult flies.
Question 7 Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in mammals. Two normally pigmented parents already have an albino boy. They plan to have 2 more children. a) What is the probability that their next two children will be normally pigmented? Show your work. b) What is the probability that their next two children will both have albinism? Show your work. c) What is the probability that, when they have 2 more children, they will end up with a family including a total of 2 albino children and one normal? Show your work. d) What is the probability that, when they have two more children, the next child (i.e. the second-born child) will be normal, followed by a child with albinism? Show your work. e) Explain why the answers to part (c) and part (d) are calculated differently.
Question 12 A heritable trait is one which 1. is passed on from parent to offspring 2. does not vary between members of a population 3. develops over one's lifetime (like muscle growth) 4. results from a mutation
QUESTION 24 Human immunodeficiency virus (HIV) is of interest to evolutionary biologists because all of the following, EXCEPT: a. Phylogenetics allow us trace epidemics and transmission pathways. b. Evolution of the virus has led to drug resistance and the need for multidrug treatments. c. Population demography and disease transmission can differ between populations. d. Resistant alleles are maintained in high frequency due to high selective pressure of the disease.
Question 3 and 4. I can’t find how to find if the shaded is dominant or recessive. Please Help.