Homework Answers
Since there is a direct relationship between recombination frequency and map unit, which means 1% recombination frequency, is equivalent to 1 centimorgan or 1 map unit.
The expected frequency of the gametes ABC and abc produced by an individual of genotype AbC/aBc is 6.08% and 22.1% respectively.
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The following map indicates the order of three genes (A, B, and C) on a chromosome...
There are three genes - A, B, C - on the same chromosome. You have been...
There are three genes - A, B, C - on the same chromosome. You have been studying gene A and know that the distance between A and B is 5 m.u. (map units), and the distance between A and C is 3 m.u. Based on the information you have, above, what are potential arrangements of all three genes on the chromosome? You can choose more than one. Note: answers give the genes and map units between them, in order. For...
You are following the inheritance of three genes: A, B and C. Aand B are...
You are following the inheritance of three genes: A, B and C. A and B are on the same chromosome; C is on a different chromosome from A and B (for example; A and B are on chromosome 1 and C is on chromosome 4).Which option correctly represents the genotype of an individual who is heterozygous for all three genes?What is the recombination frequency for unlinked genes (i.e., genes that sort independently)? Frequency is given as a number from 0...
Three plant genes, A, B, and C, are linked and occur in the following order. Genetic...
Three plant genes, A, B, and C, are linked and occur in the following order. Genetic distances are given as map units (m.u.): A________10 m.u.______B_____0 m.u.__C The genes underlie the following phenotypes: A/_ = blue flowers, a/a = white flowers B/_ = tall stems, b/b = short stems C/_ = green leaves, c/c = red leaves You cross two individuals with the following genotypes: AbC/AbC x aBc/aBc If you self the resulting F1 the proportion of the offspring that will...
Consider an individual with the genotype Ab/aB (below). The A and B genes are 27 map...
Consider an individual with the genotype Ab/aB (below). The A and B genes are 27 map units apart. Given this information, indicate the correct genotypes, and respective corresponding expected frequencies, for ALL possible gametes that can be produced by this individual during meiosis.
QUESTION 3 Vulcans have three genes, pointed ears (P), absent adrenal glands (A), and a right-sided...
QUESTION 3 Vulcans have three genes, pointed ears (P), absent adrenal glands (A), and a right-sided heart (R) which are on the same chromosome, as shown below. The gene P is 10 map units from A. The gene A is 25 map units from R. All three of these alleles are dominant to normal Earth alleles: rounded ears (p), adrenal glands (a) and a left sided heart (r). P. (10 m.u.) A (25 m.u.) R Mr. Spock, the first officer...
The map of a chromosome interval is A-B = 20 m.u. and B-C = 30 m.u....
The map of a chromosome interval is A-B = 20 m.u. and B-C = 30 m.u. B is in between A and C. If cross overs between A-B and B-C are independent events, how many double crossovers would be expected out of 1000 progeny from the cross ABC/abc × abc/abc? Question 9 options: 40 500 80 60 6 90
In flamingos, genes A and B are known to be 21 map units apart on chromosome...
In flamingos, genes A and B are known to be 21 map units apart on chromosome #5. You mate an AA:BB male with an aa:bb female to produce F1 flamingos. a. What gametes will be made by these F1 individuals and in what proportions? b. When the F1's are bred to each other, they produce a total of 276 offspring. How many of these offspring would you predict should have the genotype Aa:BB?
By analyzing the gametes from a trihybrid fruit fly that is heterozygous for three linked genes...
By analyzing the gametes from a trihybrid fruit fly that is heterozygous for three linked genes (AaBbDd), you obtain the following data: Organize the 8 haploid genotypes into pairs that correspond to parentals, double crossovers (DCO) and each of the two types of single crossovers (SCO). Draw a map showing the order of the three genes on the chromosome. Label the map to indicate the distances (in centimorgans or map-units) between the gene in the middle and the genes on...
27. An individual has the following genotype. Gene loci (A) and (B) are 15 map units...
27. An individual has the following genotype. Gene loci (A) and (B) are 15 map units apart, which determines their probability of recombination. 1) Indicate all the possible gametes that this individual can produce (with crossing over), 2) Label the gametes that are recombinant and non- recombinant. 3) Calculate the recombination frequency of the recombinant and non-recombinant gametes. The genes are not COMPLETELY linked. 28. Now imagine the genes are completed linked in #27. 1) What are all possible gametes?
Below is a map of the Drosophila melanogaster X chromosome, giving the distances between adjacent genes...
Below is a map of the Drosophila melanogaster X
chromosome, giving the distances between adjacent genes in cM.
Suppose that a female is heterozygous for an inversion of the
exact entire region from v to wy.
She is also heterozygous for all the genes shown in the map, and
is test-crossed.
What percentage of her progeny will be recombinants between the
following gene pairs?
a) wy and g ___________
b) v and g _____________
There are three genes - A, B, C - on the same chromosome. You have been studying gene A and know that the distance between A and B is 5 m.u. (map units), and the distance between A and C is 3 m.u. Based on the information you have, above, what are potential arrangements of all three genes on the chromosome? You can choose more than one. Note: answers give the genes and map units between them, in order. For...
Consider an individual with the genotype Ab/aB (below). The A and B genes are 27 map units apart. Given this information, indicate the correct genotypes, and respective corresponding expected frequencies, for ALL possible gametes that can be produced by this individual during meiosis.
QUESTION 3 Vulcans have three genes, pointed ears (P), absent adrenal glands (A), and a right-sided heart (R) which are on the same chromosome, as shown below. The gene P is 10 map units from A. The gene A is 25 map units from R. All three of these alleles are dominant to normal Earth alleles: rounded ears (p), adrenal glands (a) and a left sided heart (r). P. (10 m.u.) A (25 m.u.) R Mr. Spock, the first officer...
By analyzing the gametes from a trihybrid fruit fly that is heterozygous for three linked genes (AaBbDd), you obtain the following data: Organize the 8 haploid genotypes into pairs that correspond to parentals, double crossovers (DCO) and each of the two types of single crossovers (SCO). Draw a map showing the order of the three genes on the chromosome. Label the map to indicate the distances (in centimorgans or map-units) between the gene in the middle and the genes on...
27. An individual has the following genotype. Gene loci (A) and (B) are 15 map units apart, which determines their probability of recombination. 1) Indicate all the possible gametes that this individual can produce (with crossing over), 2) Label the gametes that are recombinant and non- recombinant. 3) Calculate the recombination frequency of the recombinant and non-recombinant gametes. The genes are not COMPLETELY linked. 28. Now imagine the genes are completed linked in #27. 1) What are all possible gametes?
Below is a map of the Drosophila melanogaster X
chromosome, giving the distances between adjacent genes in cM.
Suppose that a female is heterozygous for an inversion of the
exact entire region from v to wy.
She is also heterozygous for all the genes shown in the map, and
is test-crossed.
What percentage of her progeny will be recombinants between the
following gene pairs?
a) wy and g ___________
b) v and g _____________
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