A plant of genotype AB/ab- yes, the two genes are linked is testcrossed to an ab/ab...
A plant of genotype AB/ab- yes, the two genes are linked is testcrossed to an ab/ab plant. if the two genes are 10 map units apart, then what fraction of progeny will be AB/ab?
Homework Answers
The answer is 45% and the fraction is 45/100 or 4.5/10.
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A plant of genotype AB/ab- yes, the two genes are linked is
testcrossed to an ab/ab...
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%
3. (2 pts) A plant with the genotype AB/ab is testcrossed to a homozygous recessive plant...
3. (2 pts) A plant with the genotype AB/ab is testcrossed to a homozygous recessive plant (ab/ab). If the loci are 28 m.u. apart, what proportion of progeny will be AB/ab? Explain your answer.
Genetics Question: A tree of genotype BBCC is crossed to a tree of genotype bbcc. The...
Genetics Question: A tree of genotype BBCC is crossed to a tree of genotype bbcc. The resulting F1 trees are testcrossed. A) What % of the testcross progeny will be bbcc if the 2 genes are 0 map units apart? Provide reason B) What % of the testcross progeny will be bbcc if the 2 genes are on the wame chromosome and 60 map units apart? provide reason
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.
36. The recessive autosomal maize genes sh and bz are linked and 40 map units apart,...
36. The recessive autosomal maize genes sh and bz are linked and 40 map units apart, If a plant with the genotype sh bz/ sh bz is selfed, what percentage of the progeny will be double recessive? 37. If the recombination frequency between the linked autosomal genes A and B in Drosophila is 15 percent, what phenotypic frequencies would you expect from a cross AB/ab females x AB/ab males? (There is no crossing over in Drosophila males). 38. In the...
please show all work clearly Disc 2, Bb# 3 In the morning glory plant, three genes...
please show all work clearly
Disc 2, Bb# 3 In the morning glory plant, three genes are linked as follows: 20 m.u 30 m.u A morning glory plant with the genotype BB gg DD was crossed to a morning glory plant of genotype bb GG dd. The F1 progeny was testcrossed to a b g d/bg d plant. A. Assume no interference, what genotypic classes will be found in the progeny and the frequencies if there are 1000 progeny? B....
A purple flowering, smooth seed dihybrid plant (genotype PpSs) is test crossed with a white flowering,...
A purple flowering, smooth seed dihybrid plant (genotype PpSs) is test crossed with a white flowering, wrinkled seed plant (genotype ppss). These produce progeny in the following numbers of four phenotypes: 24:76:74:26 (purple flower + smooth seed coat: purple flower + wrinkled seed coat: white flower + smooth seed coat: white flower + wrinkled seed coat). a) Explain how ratios of progeny show that the two genes are linked. b) How many map units separate the colour and seed coat...
You are studying two linked, autosomal genes (A and B) in Drosophila. You make the following...
You are studying two linked, autosomal genes (A and B) in Drosophila. You make the following testcross between AB/ab (x) ab/abflies, and record the progeny results (see below). However, you have previously determined that the Aa/bb genotype is lethal in early embryogenesis (before hatching), and therefore these individuals never appear among the viable testcross progeny observed. Indicate the most accurate map distance between the A and B genes that can be determined from these data? Show all your work (scratch...
2. Genes A and B are linked on the same chromosome. The recombination frequency between the...
2. Genes A and B are linked on the same chromosome. The recombination frequency between the two genes is r = 0.2. Given this cross between two individuals: AB/ab x aB/Ab, what is the probability of the cross giving progeny of the genotype ab/ab?
A purple flowering, smooth seed dihybrid plant (genotype PpSs)is test crossed with a white flowering, wrinkled...
A purple flowering, smooth seed dihybrid plant (genotype PpSs)is test crossed with a white flowering, wrinkled seed plant(genotype ppss).These produce progeny inthe following numbers of four phenotypes:24:76:74:26 (purple flower + smooth seed coat: purple flower + wrinkled seed coat: white flower + smooth seed coat: white flower + wrinkled seed coat). a)Explain how ratios of progeny show that the two genes are linked. b)How many map units separate the colour and seed coat genes? Show your calculations.
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.
36. The recessive autosomal maize genes sh and bz are linked and 40 map units apart, If a plant with the genotype sh bz/ sh bz is selfed, what percentage of the progeny will be double recessive? 37. If the recombination frequency between the linked autosomal genes A and B in Drosophila is 15 percent, what phenotypic frequencies would you expect from a cross AB/ab females x AB/ab males? (There is no crossing over in Drosophila males). 38. In the...
please show all work clearly
Disc 2, Bb# 3 In the morning glory plant, three genes are linked as follows: 20 m.u 30 m.u A morning glory plant with the genotype BB gg DD was crossed to a morning glory plant of genotype bb GG dd. The F1 progeny was testcrossed to a b g d/bg d plant. A. Assume no interference, what genotypic classes will be found in the progeny and the frequencies if there are 1000 progeny? B....
You are studying two linked, autosomal genes (A and B) in Drosophila. You make the following testcross between AB/ab (x) ab/abflies, and record the progeny results (see below). However, you have previously determined that the Aa/bb genotype is lethal in early embryogenesis (before hatching), and therefore these individuals never appear among the viable testcross progeny observed. Indicate the most accurate map distance between the A and B genes that can be determined from these data? Show all your work (scratch...
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