Gametes produced in a paracentric inversion heterozygote WITHOUT crossing over are: a. two gametes with deletions...
Gametes produced in a paracentric inversion heterozygote WITHOUT crossing over are:
a. two gametes with deletions and/or duplications and two normal gametes
b. one normal gamete, two with deletions and/or duplications and one with the inversion
c. two gametes with the inversion and two normal gametes
d. two gametes with the inversion and two with the deletion and/or duplications
e. No normal gametes
Homework Answers
The correct option is C. Since no crossing over is occurred and the centromere is also not involved, then the only change is in the gene sequence. No addition and deletion will occur. Since inversion is a heterozygote, it means only one arm of each chromosome will be effected with inversion, another arm will be normal. So two normal and two inversion gametes will be produced.
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Gametes produced in a paracentric inversion heterozygote WITHOUT
crossing over are:
a. two gametes with deletions...
1. During meiosis when crossing over occurs in a paracentric inversion loop, what percent of the...
1. During meiosis when crossing over occurs in a paracentric inversion loop, what percent of the meiotic products will result in nonviable gametes? (0.5 points) a. 0% b. 25% c. 50% d. 75% e. 100%
For a chromosome with a paracentric inversion. 12*34567 12*54367 Show the gametes that can be produced...
For a chromosome with a paracentric inversion. 12*34567 12*54367 Show the gametes that can be produced if a crossover occurs between loci 4 and 5.
19. A viable inversion heterozygote is undergoing meiosis. The chromosomes are illustrated below. Compare the consequences...
19. A viable inversion heterozygote is undergoing meiosis. The chromosomes are illustrated below. Compare the consequences of crossing over in two cases: crossing over between C and D, and crossing over between F and G ABCDEFGHIJK 2 ABCHG FEDIJK 20. Using the same inverted chromosome above: a. Two crossing over events occur among these chromatids: a crossover between genes H and G on chromatids 2 and 4, and a crossover between genes D and E on chromatids 1 and 3....
1. For the two situations shown below, draw the chromosomes that would be present during metaphase...
1. For the two situations shown below, draw the chromosomes that would be present during metaphase of meiosis I if there was a crossover between C and D. Also indicate whether the resulting gamete produced by meiosis would be viable after fertilization with a normal gamete. a. The heterozygote has one normal chromosome... Paracentric inversion ... and one chromosome with an inverted segment Formation of inversion loop In prophase 1 of meiosis, the chromosomes form an inversion loop, which allows...
Inversion Problems: An individual is heterozygous for an inversion: ADCBEFG HI, and during gamete formation there...
Inversion Problems: An individual is heterozygous for an inversion: ADCBEFG HI, and during gamete formation there is a crossing over event between C and B. Draw chromosome structure pre and post meiosis. Be sure to label the chromatids/chromosomes with the appropriate sequence of genes. Label mutant and wild type chromatids/chromosomes, viable and non-viable gametes. Circle and identify the mutations in the non-viable gametes inuerston If an individual is heterozygous for an inversion, ABC DGFEHI, and a crossing over event occurred...
Which of the following is the Law of Dominance? A. in a heterozygote, the two different...
Which of the following is the Law of Dominance? A. in a heterozygote, the two different alleles are equally expressed B. in the heterozygote, one allele will mask the expression of the other C. In the production of gametes, gene pairs behave independently of other gene pairs D. In the production of gametes, a gene pair separates so each gamete gets one gene from the pair E. the outward expression of a genetic trait is controlled by a pair of...
thumbs up for good answer! please help with my genetics, thank you!! heres a better quality...
thumbs up for good answer! please help with my genetics, thank
you!!
heres a better quality photo
1. In the analysis of bacteriophage T4 rll locus mutants, a mixed infection experiment was eonducted. Complementation was ebierved for mutants 1 and 2, as well as for mutants 2 and 3 but mot between and 3. What can be concluded from the results? A-mutations 1 and 3 are on dferent genes B-all 3 mutations are in separate genes C-mutations 1 and 3...
1. An inversion heterozygote has the following inverted chromosome: ABCD JIHGF.EKLM. a. Sketch how this chromosome...
1. An inversion heterozygote has the following inverted chromosome: ABCD JIHGF.EKLM. a. Sketch how this chromosome will pair with its normal homologue (AB CDE FGHIJ K L M) in prophase I. Make sure you include all strands (remember, the chromosomes are replicated). (2 pts) b. What four gametes result when a single crossover occurs between genes F and G on one inversion and one normal chromosome? (4 pts)
1. A flower is heterozygous for the following inversion of chromosome 1 (dot=centromere) A B C ...
1. A flower is heterozygous for the following inversion of chromosome 1 (dot=centromere) A B C ● D E F G a b e d ● c f g a. Is this a paracentric or pericentric inversion? I am thinking Pericentric? b. Draw the pairing configuration at prophase I including all 4 chromatids. I wasnt too sure how to map the loop out for this one c. Give the genotypes of the gametes from this meiosis if there is a...
Practice Problems 7: Chromosome Variation in Structure 1. A petunia is heterozygous for the following inversion...
Practice Problems 7: Chromosome Variation in Structure 1. A petunia is heterozygous for the following inversion of chromosome 1 (the dot is the centromere): A a b B C D • E C F f G g e d a. Is this a paracentric or pericentric inversion? b. Draw the pairing configuration at prophase l including all 4 chromatids. c. Give the genotypes of the gametes from this meiosis if there is a single cross-over between genes D and E,...
1. During meiosis when crossing over occurs in a paracentric inversion loop, what percent of the meiotic products will result in nonviable gametes? (0.5 points) a. 0% b. 25% c. 50% d. 75% e. 100%
19. A viable inversion heterozygote is undergoing meiosis. The chromosomes are illustrated below. Compare the consequences of crossing over in two cases: crossing over between C and D, and crossing over between F and G ABCDEFGHIJK 2 ABCHG FEDIJK 20. Using the same inverted chromosome above: a. Two crossing over events occur among these chromatids: a crossover between genes H and G on chromatids 2 and 4, and a crossover between genes D and E on chromatids 1 and 3....
1. For the two situations shown below, draw the chromosomes that would be present during metaphase of meiosis I if there was a crossover between C and D. Also indicate whether the resulting gamete produced by meiosis would be viable after fertilization with a normal gamete. a. The heterozygote has one normal chromosome... Paracentric inversion ... and one chromosome with an inverted segment Formation of inversion loop In prophase 1 of meiosis, the chromosomes form an inversion loop, which allows...
Inversion Problems: An individual is heterozygous for an inversion: ADCBEFG HI, and during gamete formation there is a crossing over event between C and B. Draw chromosome structure pre and post meiosis. Be sure to label the chromatids/chromosomes with the appropriate sequence of genes. Label mutant and wild type chromatids/chromosomes, viable and non-viable gametes. Circle and identify the mutations in the non-viable gametes inuerston If an individual is heterozygous for an inversion, ABC DGFEHI, and a crossing over event occurred...
thumbs up for good answer! please help with my genetics, thank
you!!
heres a better quality photo
1. In the analysis of bacteriophage T4 rll locus mutants, a mixed infection experiment was eonducted. Complementation was ebierved for mutants 1 and 2, as well as for mutants 2 and 3 but mot between and 3. What can be concluded from the results? A-mutations 1 and 3 are on dferent genes B-all 3 mutations are in separate genes C-mutations 1 and 3...
1. An inversion heterozygote has the following inverted chromosome: ABCD JIHGF.EKLM. a. Sketch how this chromosome will pair with its normal homologue (AB CDE FGHIJ K L M) in prophase I. Make sure you include all strands (remember, the chromosomes are replicated). (2 pts) b. What four gametes result when a single crossover occurs between genes F and G on one inversion and one normal chromosome? (4 pts)
Practice Problems 7: Chromosome Variation in Structure 1. A petunia is heterozygous for the following inversion of chromosome 1 (the dot is the centromere): A a b B C D • E C F f G g e d a. Is this a paracentric or pericentric inversion? b. Draw the pairing configuration at prophase l including all 4 chromatids. c. Give the genotypes of the gametes from this meiosis if there is a single cross-over between genes D and E,...
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