Please show your work, provided an example to help You testcross a spelling bee with this genotype AaBbDd. (These are in alphabetical order, but thereal genes are not necessarily in this order. In the table they are just in a random order.)a)right order, and include any relevant distances between any linked genes.Draw a map showing which genes are on which chromosomes, in thePhenotypead BNumber81383b)what it tells you.adbWhat is the formula for the coefficient of coincidence? Or, describe30ADB35c)Show work. If it is clear enough that I can follow it, it is worth partial credit.Calculate the coefficient of coincidence.Double!AdBADb69Comect conb-Double x-ore gives AD Does nota dB matehYoa!derbles(a D bGDB8.391►Try: AbTotal1000yep.Comeel enders7.6Pediar\6,1A-&ABO 35a bel 30+ deebles69Ab9o, B d 81+debdes 8CC> # dale xr161161 - 16.lch구6sexpectedu Xover00- 7.6c.To(076X, 61)U1000) 90% 8.LL gnus have a long lifespan, so they become old gnus. 1l gives normal lifespan. The NN gnuswatch the news. nn gnus play videogames instead. Finally, BB gnus drink booze. bb gnus drink water. But all youhave to do here is map the genes:a)right order, and include any relevant distances between any linked genes.Draw a map showing which genes are on which chromosomes, in thePhenotypen1 bNumber404NL B422b)what it tells you.What is the formula for the coefficient of coincidence? Or, describen L B18N1b16с)Show work. If it is clear enough that I can follow it, it is worth partial credit.Calculate the coefficient of coincidence.n L b75N1B59n1 BNL b4Total1000

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You testcross a spelling bee with this genotype AaBbDd. (These are in alphabetical order, but the real genes are not necessarily in this order. In the table they are just in a random order.) a) right order, and include any relevant distances between any linked genes. Draw a map showing which genes are on which chromosomes, in the Phenotype ad B Number 81 383 b) what it tells you. adb What is the formula for the coefficient of coincidence? Or, describe 30 ADB 35 c) Show work. If it is clear enough that I can follow it, it is worth partial credit. Calculate the coefficient of coincidence. Double AdB ADb 69 Dahb Comect conb- a Db aDB Double x-ore gives AD Does not a dB mateh 8. 391 Try: Ab Total 1000 yep. Comeel enders dorsles 7.6 Pediar \6,1 A-& ABO 35 a bl 30 + debles 69 Ab9 o, B d 81 CC> # dole xcer 161 161 - 16.1ch 구6 00- 7.6c. To (076X, 61)U1000) 90%

You testcross a spelling bee with this genotype AaBbDd. (These are in alphabetical order, but the real genes are not necessarily in this order. In the table they are just in a random order.) a) right order, and include any relevant distances between any linked genes. Draw a map showing which genes are on which chromosomes, in the Phenotype ad B Number 81 383 b) what it tells you. adb What is the formula for the coefficient of coincidence? Or, describe 30 ADB 35 c) Show work. If it is clear enough that I can follow it, it is worth partial credit. Calculate the coefficient of coincidence. Double AdB ADb 69 Dahb Comect conb- a Db aDB Double x-ore gives AD Does not a dB mateh 8. 391 Try: Ab Total 1000 yep. Comeel enders dorsles 7.6 Pediar \6,1 A-& ABO 35 a bl 30 + debles 69 Ab9 o, B d 81 CC> # dole xcer 161 161 - 16.1ch 구6 00- 7.6c. To (076X, 61)U1000) 90%

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter22: Speciation

Section: Chapter Questions

Problem 6TYK

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2 Color Blindness with a Twist: As a genetic counselor, you may face some ethical dilemmas. Imagine that a couple came to your office to discuss potential color blindness in their children. The man is not color blind, but his wife is. They already have one daughter that is color blind and want to know the probability of future children having the disorder. First, you will need to explain to the couple the difference between sex chromosomes and autosomal chromosomes and that color blindness is caused by a recessive mutation in a gene found on the X chromosome. Once they understand this, you can then explain to them the probability of other offspring having the disorder. What is the dilemma in this case and why might you need to suggest to the couple that they see a marriage counselor?
2. Null mutations are valuable genetic resources becausethey allow a researcher to determine what happens to anorganism in the complete absence of a particular protein. However, it is often not a trivial matter to determinewhether a mutation represents the null state of the gene.a. Geneticists sometimes use the following test forthe nullness of an allele in a diploid organism: If theabnormal phenotype seen in a homozygote for theallele is identical to that seen in a heterozygote(where one chromosome carries the allele in question and the homologous chromosome is known tobe completely deleted for the gene) then the alleleis null. What is the underlying rationale for thistest? What limitations might there be in interpreting such a result?
4. What indicate the relative location of genes on chromosome? A. chromosome site B. chromosome maps C. chromosome guide D. chromosome loci
1. In a DNA study, from a patient with mental retardation, the FMR1 gene is located, which causes many repetitions of mutations in the X chromosome. This type of mutation is a. ionic b. chromosomal c. induced d. knitted
3. It’s very rare for someone with two X chromosomes to have DMD. Explain how a person with two X chromosomes could have the symptoms of DMD using what you know about inheritance and random mutation.
3. Albinism in humans is controlled by a recessive gene (c). From marriages between two normally pigmented carriers (Cc), what is the probability of having a normal child? An albino? Assume that from such a marriage (Cc x Cc) four children will be produced. (@ What is the probability that all four will be normal? (b) Three will be normal and one albino? (c) Two normal and two albino?
A major difference between hereditary information in eukaryotes and prokaryotes is: a. in prokaryotes, the hereditary information is distributed among individual, linear DNA molecules in the nucleus. b. in eukaryotes, the hereditary information is encoded in a single, circular DNA molecule. c. in prokaryotes, the hereditary information is usually distributed among multiple circular DNA molecules in the cytoplasm. d. in eukaryotes, the hereditary information is distributed among individual, linear DNA molecules in the cytoplasm. e. in eukaryotes, the hereditary information is distributed amoung individual, linear DNA molecules in the nucleus.
Choose the statement that is incorrect. a. A son can inherit a recessive allele on an X chromosome from either parent. b. An individual may inherit three or more of each type of chromosome characteristic or the species, a condition called polyploidy. c. A female child inherits one X chromosome from her mother and one from her father. d. Pedigree analysis can be used to determine a future childs chance of being born with achcondroplasia.
For each species, all ________ in the complete set of chromosomes is the ________. a. genomes; library b. DNA; genome c. mRNA; start of cDNA d. cDNA; start of mRNA
The ability of humans to taste the bitter chemical phenylthiocarbamide (PTC) is a genetic trait. People with at least one copy of the normal, dominant allele of the PTC gene can taste PTC; those who are homozygous for a mutant, recessive allele cannot taste it. Could two parents able to taste PTC have a nontaster child? Could nontaster parents have a child able to taste PTC? A pair of taster parents, both of whom had one parent able to taste PTC and one nontaster parent, are expecting their first child. What is the chance that the child will be able to taste PTC? Unable to taste PTC? Suppose the first child is a nontaster. What is the chance that their second child will also be unable to taste PTC?
What are epigenetic modifications? the addition of reversible changes to histone proteins and DNA the removal of nucleosomes from the DNA the addition of more nucleosomes to the DNA mutation of the DNA sequence
The probability of a crossover occurring between two genes on the same chromosome ________. a. is unrelated to the distance between them b. decreases with increasing distance between them c. Increases with the distance between them