Loci close to the centromere have: a. No recombination between them b. Lots of recombination between...
Loci close to the centromere have:
a. No recombination between them
b. Lots of recombination between them
c. Some degree of recombination between them
d. Independent assortment
e. Independent segregation
Homework Answers
The answer to this is option (b).The loci close to centromere will have lots of recombination between them. Centromeres are structures of a chromosome which is essential during segregation of chromosomes during meiosis and mitosis. The centromere is known to contain a lot of repititive DNA sequences. These sequences are seen to maintain inter repeat sequence identity, suggesting that recombination mechanisms are operating here.
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Loci close to the centromere have:
a. No recombination between them
b. Lots of recombination between...
Suppose the interference value (I) between loci A and B is the same as the interference...
Suppose the interference value (I) between loci A and B is the same as the interference between loci B and C, and the order of the loci on the same autosome is A-B-C. If I = 0.05, then a recombination between loci A and B implies: A. the recombination fraction between A and B is equal to the recombination fraction between B and C. B. a recombination between loci B and C has an apporixmately 5% probability C. a recombination...
5. Quantitative trait loci(QTL) are: The loci that contribute all of the variation in a continuous...
5. Quantitative trait loci(QTL) are: The loci that contribute all of the variation in a continuous trait The loci that contribute all of the genetic variation in a continuous trait The loci that contribute the broad-sense heritability in a continuous trait The loci that contribute the narrow-sense heritability in a continuous trait 6. We looked at a study where Drosophila flies were selected for phototaxis (either attracted to or repelled by light). This experiment measures how much genetic variation existed...
The genetic map between four loci is given: P—2cM—Q-1cM-R---6cM---S The probability of recombination between P and...
The genetic map between four loci is given: P—2cM—Q-1cM-R---6cM---S The probability of recombination between P and S is Select one: a. 0.009 b. 0.012 c. 0.00012 d. 0.09 e. 0.9
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a...
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a hallmark of independent assortment. Genes that are located close together on the same chromosome have a recombination frequency less than 50%, which is an indication of linkage. Complete the following questions to investigate recombination frequency between genes that are far apart on the same chromosome. Two genes on the same chromosome may have no crossover (NCO), a single crossover (SCO), or a double crossover...
SO/ do no 2. A series of 2-point crosses were carried out among 7 loci (a, b, c, d, e, f, and g. producing the following recombination frequencies. Map the 7 loci, showing their linkage groups, t...
SO/ do no 2. A series of 2-point crosses were carried out among 7 loci (a, b, c, d, e, f, and g. producing the following recombination frequencies. Map the 7 loci, showing their linkage groups, the order of the loci in each linkage group, and distances berween the loci of each group. () | % Reco Loci % Recombination 50 26 50 50 50 50 a- b a-c a-d a- e 50 50 12 50 50 4 10 50...
Problem I A series of two-point crosses were carried out among seven loci (a, b, c,...
Problem I A series of two-point crosses were carried out among seven loci (a, b, c, d, e, f, and g), producing the following recombination frequencies. Map the seven loci, showing their linkage groups, the order of the loci in each linkage group, and distances between the loci of each linkage group. Loci % Recombination Loci % Recombination a - b 50 c - d 50 a - c 50 c - e 26 a - d 12 c -...
Paracentric inversions are genome features that effectively prevent recombination. Loci A and B are 5x106 base...
Paracentric inversions are genome features that effectively prevent recombination. Loci A and B are 5x106 base pairs apart but are part of the same inversion (i.e. they do not recombine). Locus C lies outside the inversion and is 6x106 base pairs from A and 1x106 base pairs from B. Assume that in the human genome 1x106 base pairs correspond approximately to 1 m.u. when loci can freely recombine. "Draw" a physical and a linkage map for the 3 loci listing...
The alleles of different loci independent assortment of these alleles can result in 80. A. non-allelic...
The alleles of different loci independent assortment of these alleles can result in 80. A. non-allelic B. recombination C. allelic are assorted at random with respect to each other in the gamete and the 80 E. A and C are correct D. homologous gene that lie close to each other on the same pair of homologous chromosome and their alleles do not assorted independently are called- 81. A. homology B. chromatid E. linked genes C.chromatin D. A and B are...
Genetics b. (16 pts) A recombination event occurs between two DNA strands flanked by markers "A"...
Genetics
b. (16 pts) A recombination event occurs between two DNA strands flanked by markers "A" and "B" on one strand and different alleles of the same loci on the other s and "b"). Between these loci is the lac operon. The top strand has single missence mutations in both the lacž and lacY genes. During the recombination procs following Holliday intermediate structure is gencrat the lac I lacz lacY lac I lacZ lacY*
14) Which of the following statements about independent assortment or segregation is correct? A) The law...
14) Which of the following statements about independent assortment or segregation is correct? A) The law of independent assortment describes the behaviour of two or more genes relative to one another. B) The law of segregation describes the behaviour of two or more genes relative to one another C) The law of independent assortment is accounted for by observations of prophase I of meiosis. D) The law of segregation is accounted for by telophase of mitosis. The laws of segregation...
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a hallmark of independent assortment. Genes that are located close together on the same chromosome have a recombination frequency less than 50%, which is an indication of linkage. Complete the following questions to investigate recombination frequency between genes that are far apart on the same chromosome. Two genes on the same chromosome may have no crossover (NCO), a single crossover (SCO), or a double crossover...
SO/ do no 2. A series of 2-point crosses were carried out among 7 loci (a, b, c, d, e, f, and g. producing the following recombination frequencies. Map the 7 loci, showing their linkage groups, the order of the loci in each linkage group, and distances berween the loci of each group. () | % Reco Loci % Recombination 50 26 50 50 50 50 a- b a-c a-d a- e 50 50 12 50 50 4 10 50...
The alleles of different loci independent assortment of these alleles can result in 80. A. non-allelic B. recombination C. allelic are assorted at random with respect to each other in the gamete and the 80 E. A and C are correct D. homologous gene that lie close to each other on the same pair of homologous chromosome and their alleles do not assorted independently are called- 81. A. homology B. chromatid E. linked genes C.chromatin D. A and B are...
Genetics
b. (16 pts) A recombination event occurs between two DNA strands flanked by markers "A" and "B" on one strand and different alleles of the same loci on the other s and "b"). Between these loci is the lac operon. The top strand has single missence mutations in both the lacž and lacY genes. During the recombination procs following Holliday intermediate structure is gencrat the lac I lacz lacY lac I lacZ lacY*
14) Which of the following statements about independent assortment or segregation is correct? A) The law of independent assortment describes the behaviour of two or more genes relative to one another. B) The law of segregation describes the behaviour of two or more genes relative to one another C) The law of independent assortment is accounted for by observations of prophase I of meiosis. D) The law of segregation is accounted for by telophase of mitosis. The laws of segregation...
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