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Estimate the probability of affected children in IV generation autosomonal recessive disease with th
Hello I need to help with some biology genetics and prognosis, can you answer this question for me with a detail explanation, and also could you explain how different diseases, i.e. AR, AD, GD, and GR, are answered in similar questions. Regarding the question. Estimate the probability of affected children in IV generation autosomonal recessive disease with the frequency of 1 si
I got my finals in a few days and was wondering if anybody could give me the link to the answers to the review questions in this book? I finished all the questions but I'm not entirely sure how to check them as there is no answer section and the wwnorton.com/studyspace doesn't have anything either. Thanks
I am in serious need of correction or confirmation please! I am going to throw out some random facts and please let me know if I am accurate or not. Thanks for helping!
F1 hybrid can only be created by using two separate parents from inbred lines or P1. F1 are uniform, showing a new phenotype without variation. Not even once in a while will you see a second phenotype show
Familial hypercholesterolemia was evaluated in a population by computing the reg
Familial hypercholesterolemia was evaluated in a population by computing the regression coefficient for individuals of various relationships. Calculate the heritability of each of the following relationships.
Relationship Regression Heritability Coefficient (b) Par
Thank you for reading. So I have a basic understanding of Mendel's works, but I am trying to figure genetics out better. Please if you could help, because I can't find the data anywhere on the internet on these questions.
If you take an F1 hybrid and cross it to a p1 (seperate from the hybrid's two different parent types) would you get a new F1 hybrid, or F
13) In Drosophila, assume that the gene for scute bristles (s) is located at map position 0.0 and that the gene for ruby eyes (r) is at position 15.0. Both genes are located on the X chromosome and are recessive to their wild-type alleles. A cross is made between scute-bristled females and ruby-eyed males. Phenotypically wild F1 females were then mated to homozygous double mutant ma
A scientist wanted to compare the evolution of the families Balaenopteridae (the rorqual baleen whales) and Delphinidae (the dolphins). Balenopteridae consist of about 11 species while Delphidae consist of about 41 species. The scientist proposes the hypothesis that evolution has occurred more rapidly in Delphinidae due to their active, predatory lifestyle, while the baleen whales,
Fly larva mutations for Gap, pair-rule, and maternal effect genes
The title say most of it. I'm supposed to draw the mutations in the Drosophila larva, but I also need to label the structures which my textbook is not helping me much with. So far I just know that the mutants are stubby little creatures... I also need to list the specific gene mutated since I guess these are gene families???
Frequency of gametes and phenotypes from genetic map
Consider the genetic map below of loci a-g, where the distance between loci are indicated in map units. a-5-b-20-c-10-d-2-e-25-f-1-g a) Calculate the frequency of ac gametes from an Ac/aC genotype. b) BcE from bce/BCE c) bFG from bfg/BFG d) the frequency of BCD/Bcd from bCd/BcD x BCd/BcD e) the frequency of aBcDeFg/aBcDeFg progeny from a mating of
Fruit Fly genetics: WILD MALE x BROWN EYE DUMPY WING female
Question pertains to Pearson biologylabsonline homework. Assignment is to cross a wild male X brown eye, dumpy wing female. The F1 results were as follows: 100% wild F1 phenotype, autosomal results.
Backcrossed a F1 male to a P1 female. F2 Results were: 1:1 ratio of wild phenotypes to brown eye, dumpy wing. There were no flys showing wild eyes, du
Please help me answer this question. AaBbCc x aabbcc test cross with ABC linked and dominant. 2000 phenotypes observed with the following individuals counted out of 2000. establish the gene arrangement and map distances.
In green turtles, an odd number of plates on there shell is dominant over an even number of plates. On the same chromosome is a gene for ear spot color with red being dominant over orange. On this same chromosome is the gene for strip color on the body with yellow being incompletely dominant with blue strips. These turtles were crossed in a breeding experiments and the following dat
a. What is one possible double stranded DNA sequence you would insert into this gene is order to have it now make a protein with the 1o structure: NH2 MET ALA SER SER ILE VAL GLU COOH
b. Which bases in the default wildtype sequence (from # to #) would you replace with this new stretch of sequence?
Two theoretical genetic strains of a virus (a − b − c − and a + b + c +) were used to simultaneously infect a culture of host bacteria. Of 10,000 plaques scored, the following genotypes were observed. Determine the genetic map of these three genes on the viral chromosome. Decide whether interference was positive or negative. a+b+c- 41000
In Drosophila, four genes on the X chromosome are sites of recessive mutations causing yellow body (y), white eyes (w), miniature bristle (m), and small wings (sm). In a test cross of F1 triple heterozygous female (obtained by crossing two pure-breeding P1 stocks) with (m y w)/Y males, seven classes of progeny were recovered and counted among 400 F2 flies.
1. 12 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. Determine the frequency of the lethal allele in the population, expressed as a percent.
2. 10 of 2400 babies born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. What percent
1. The ability to curl one’s tongue into a U-shape (Q) is dominant to noncurlers (q). A curler woman has a father who is a noncurler. She has five children with a noncurler man. What is the probability that four children are curlers and the other is a noncurler?
2. Your lab is investigating the genetics of a new species of beetle. You have isolated a truebreeding line tha
Use the following hypothetical information to answer the next two questions. Eye colour in humans appears to be controlled by multiple alleles. The green allele and the brown allele are dominant to blue. Green eye colour is expressed only in the absence of a brown allele. Red-green colour blindness is a sex-linked trait. Red-green colour blind
Given the pedigree below, what is the probability...?
The pedigree illustrated below (see attached jpeg file) shows a rare autosomal recessive trait. What is the probability that a child of III-4 and III-5 will manifest the phenotype for this trait?
Hi there, I was wondering if someone could let me know if I did this right or not. Thanks in advance for any help.
So, the problem states the following:
Quote
We have crossed one flower with a corolla that is white and personé (the original question is not in English and I can't find a definition for personé anywhere, doesn't really matter I
help analyzing this paragraph from journal article
In this journal "Evolutionary History and Adaptation from High-Coverage Whole-Genome Sequences of Diverse African Hunter Gatherers" by Lachance et. al , I am having a hard time trying to figure out what this certain section is saying.
Under "Evidence of Archaic Introgression" - We didn't find strong evidence that introgressed regions were clustere
Wild type, or wt, refers to the genotype that is the typical genotype found in nature. Now read that again. Once more. Now answer. Answer
True False
I PCR out a mutated gene in a patient with nana chorea (the inability to dance in a coordinated fashion) and I compare it to another patient with that same disease phenotype.
4. The diagram below outlines a molecular test to determine if individuals have the sickle-cell allele. First the region is amplified by PCR and then digested with a restriction enzyme. The two primers are located just to the left of the “1” site and just to the right of the “3” site. a. If the distance between site 1 and 2 is 250bp and the distance between site 2 and 3 is 500b
(attached pic) 5. Below is an STR profile for four loci: D8S1179, D21S11, D7S820 and CSF1P0. In the figure below, the upper panel shows all of the identified alleles in the human population (eg. the D8S1179 locus has 12 different alleles) and the lower panel shows the STR profile of John Doe for these 4 loci. a. What is the chance that someone else in the population has
Help with Identificatying Restriction Enzyme Recognition Sites in a DNA sequence
Hi Folks,
I'm really struggling with a PCR & restriction enzyme question that's part of my formative (unmarked) work for the summer months in preparation from an Applied Biology course at University.
The entire set of questions are set out on an instruction sheet so I'll try to replicate them here as I'm struggling to fully understand ho
People with the recessive disease, Purple Tongue Syndrome, are unable to make the enzyme Blue Pigment Decolorase (BPD). You isolate mRNA from a person (P) afflicted with the disease and from a normal person (N) and do the following: i. Mix excess P mRNA with cloned genomic DNA carrying the BPD gene and, separately, mix Normal (N) mRNA with the same DNA. ii. Raise the tempe
How can I determine how many Genetic Loci control a specific trait?
So I have a question about finding how many loci control a certain trait. I don't know how to determine it.
The info: (Disregard any outside info retaining to the specific animal)
Pure-bred male White Cat mated with a Pure-bred female Brown Cat. They produced 90 progeny ALL Brown. Randomly interbreeding F1, they produced 1600 F2 progeny. 9
How do the eight palindromes in the male specific region of the Y chromosome (MS
How do the eight palindromes in the male specific region of the Y chromosome (MSY) prevent the chromosome degeneration that one would predict on the basis of Muller’s ratchet? What role has inversions played in the development of the MSY?
How many possible alleles are at a locus consisting of 3 base-pairs in a diploid
ugh, I am so confused...
So, I guess a locus is just a spot for a gene, so the gene is also considered to consist of 3 bases? Gene: _ _ _ Each "_" could be either an A,T,C, or G. So there are 4 possibilities per "_" So, there are 4 x 4 x 4 = 64 different possible alleles of a gene on one chromosome...? Since there are 2 c
The question asks to calculate the tandem repeats in the D1S80 allele. i plotted the graph but im not sure what to do from there. next question asks to be figure outhow many diffferent classes of homozygous and heterozygous exist? any help will be greatly appreciated
Can someone please tell me what is the formulae for calculating genetic map units?
Here is the question from my quiz:
The cross GE/ge × ge/ge produces the following progeny: GE/ge 404, ge/ge 396, gE/ge 97, Ge/ge 103. From these data, one can conclude that there are 20 map units between the G and E loci.
