The cucumber gene T and D are linked with a 16 mapping unit distance. If the...
The cucumber gene T and D are linked with a 16 mapping unit distance. If the plant (T d/t D) is selfed, what propertion of the progeny will be t d/t d?
.64%
16%
2.56%
8%
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The cucumber gene T and D are linked with a 16 mapping unit
distance. If the...
In maize (corn), assume that the genes A and B are linked and 30 map units...
In maize (corn), assume that the genes A and B are linked and 30 map units apart. If a plant of Ab/aB is selfed, what proportion of the progeny would be expected to be of ab/ab genotype? a. 30% b. 4.5% c. 9% d. 15% e. 2.25%
Gene mapping D and J are genes, each with 2 alleles. A testcross between a heterozygote...
Gene mapping D and J are genes, each with 2 alleles. A testcross between a heterozygote individual and homozygous recessive individual is performed and the following progeny are observed: D__ J__ 52 D__ jj 46 dd J__ 48 dd jj 54 Suppose D and J are in fact linked, now consider another 2 loci P and Q, each with 2 alleles, and 2 point testcrosses for genes Q and J, P and J, then D and P are performed. P__...
16.) [16 pts Consider linked genes s, t, and u in an organism. The s, t,...
16.) [16 pts Consider linked genes s, t, and u in an organism. The s, t, and u alleles are recessive to wild type. An Fl triple heterozygote for these genes is test-crossed. Testcross progeny are in the following phenotypic classes: p sutt + + + SU + 352 + u + ( U + 34 + 5 Sut (sl sut as + I SC S7+ 45 so she is 96 + + t S + t S + +...
Use the following information for the next five questions: five spines (s), smooth fruit (t), and...
Use the following information for the next five questions: five spines (s), smooth fruit (t), and uniform fruit color (u) are three recessive traits in cucumbers and the genes for these traits are linked on the same chromosome. A cucumber plant heterozygous for all three genes is used in a test-cross, and the following progeny are obtained: SUT 2 suT 21 SuT 70 sut 4 SUt 21 sUt 82 sUT 13 Sut 17 Total: 230 1. What are the order...
genetics-gene mapping Question 6 1 pts You identified 3 genes (A, B and C) located in...
genetics-gene mapping
Question 6 1 pts You identified 3 genes (A, B and C) located in the third chromosome of the Arabidopsis plant. After many crosses you determine the following genetic distances: A - 30- MU - B - 20 MU -C Out of the 500 hundred three point cross progeny you have found 10 double cross plants. Is there genetic interference happening? What is the coefficient of coincidence? I = 1 - c.o.c where c.o.c. = (observed DCO)/(expected DCO)...
In plants, you want to know whether two loci, P and Q, are linked and if...
In plants, you want to know whether two loci, P and Q, are linked and if so, what their map distance is. You do a testcross with a P/p●Q/q plant and observe the following progeny. Based on this information, what are the genotypes of the parents? Genotype Progeny P/p●Q/q 21 p/p●q/q 25 P/p●q/q 216 p/p●Q/q 238 a) The loci are linked and 4.0 m.u. apart b) the loci are linked and 18.4 m.u. apart c) the loci are linkd and...
A true breeding plant for round and yellow seeds is crossed to a true breeding wrinkled...
A true breeding plant for round and yellow seeds is crossed to a true breeding wrinkled and green seeds. All progeny are round and yellow seeds. A plant from the F1 is crossed to a true breeding wrinkled and green seed's plant, producing the following offspring: 32 yellow and round seeds, 36 wrinkled and green seeds, 15 yellow and wrinkled seeds and 17 green and round seeds. What is the map distance between the color gene and the size gene?...
A female drosophila fly is homozygous for a null allele of the X-linked white gene. Nondisjunction...
A female drosophila fly is homozygous for a null allele of the X-linked white gene. Nondisjunction of the X chromosome occurs in meiosis I in this female fly. If this female fly mates with a red-eyed male fly, what is a possible exceptional progeny genotype? Group of answer choices A. Xw Y Y B. Xw XwY C. Xw+ Xw Y D. Xw+ Xw+ Y E. Xw+ Xw+ Xw
genetics what is the distance between these genes? also set up a chi square test to...
genetics
what is the distance between these genes? also set up a chi
square test to examine data. show chi square value and p value.
please show work.
In rabbits, there are many genes that control coat appearance. The EN gene controls whether the rabbits are solid or spotted. The C gene controls whether rabbits tend to be brown or grey. The alleles of these genes follow a simple dominant/recessive pattern. The following test-cross/mapping-cross was set up: spotted and brown...
17. A diploid plant is a dihybrid for flower color (gene “R”) and leaf size (gene...
17. A diploid plant is a dihybrid for flower color (gene “R”)
and leaf size (gene “L”). Its
phenotype is red flowers and large leaves. This plant is crossed to
a tester plant (which has
white flowers and small leaves). The progeny is as follows:
23 Red, large
25 White, small
230 Red, small
235 White, large
What can be concluded about the linkage relationship of the loci in
the dihybrid parent?
A) Genes R and L are unlinked
B)...
16.) [16 pts Consider linked genes s, t, and u in an organism. The s, t, and u alleles are recessive to wild type. An Fl triple heterozygote for these genes is test-crossed. Testcross progeny are in the following phenotypic classes: p sutt + + + SU + 352 + u + ( U + 34 + 5 Sut (sl sut as + I SC S7+ 45 so she is 96 + + t S + t S + +...
genetics-gene mapping
Question 6 1 pts You identified 3 genes (A, B and C) located in the third chromosome of the Arabidopsis plant. After many crosses you determine the following genetic distances: A - 30- MU - B - 20 MU -C Out of the 500 hundred three point cross progeny you have found 10 double cross plants. Is there genetic interference happening? What is the coefficient of coincidence? I = 1 - c.o.c where c.o.c. = (observed DCO)/(expected DCO)...
A true breeding plant for round and yellow seeds is crossed to a true breeding wrinkled and green seeds. All progeny are round and yellow seeds. A plant from the F1 is crossed to a true breeding wrinkled and green seed's plant, producing the following offspring: 32 yellow and round seeds, 36 wrinkled and green seeds, 15 yellow and wrinkled seeds and 17 green and round seeds. What is the map distance between the color gene and the size gene?...
genetics
what is the distance between these genes? also set up a chi
square test to examine data. show chi square value and p value.
please show work.
In rabbits, there are many genes that control coat appearance. The EN gene controls whether the rabbits are solid or spotted. The C gene controls whether rabbits tend to be brown or grey. The alleles of these genes follow a simple dominant/recessive pattern. The following test-cross/mapping-cross was set up: spotted and brown...
17. A diploid plant is a dihybrid for flower color (gene “R”)
and leaf size (gene “L”). Its
phenotype is red flowers and large leaves. This plant is crossed to
a tester plant (which has
white flowers and small leaves). The progeny is as follows:
23 Red, large
25 White, small
230 Red, small
235 White, large
What can be concluded about the linkage relationship of the loci in
the dihybrid parent?
A) Genes R and L are unlinked
B)...
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