The cross of CcDd ⋅ CcDd results in a 12:3:1 phenotypic ratio. What are the expected...
The cross of CcDd ⋅ CcDd results in a 12:3:1 phenotypic ratio. What are the expected phenotypic ratios when a CcDd ⋅ ccdd testcross is made involving the same two genes? (They are assorting independently.)
Homework Answers
Gametes from CcDd = CD,Cd,cD and cd
Gametes from ccdd = cd.
Cross will result in offspring the following genotypes: CcDd, Ccdd, ccDd, ccdd
Their phenotypic ratio will be = 1:1:1:1
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The cross of CcDd ⋅ CcDd results in a 12:3:1 phenotypic ratio.
What are the expected...
In a cross involving independently assorting loci, the cross BBYY x bbyy (assume "B" and "Y"...
In a cross involving independently assorting loci, the cross BBYY x bbyy (assume "B" and "Y" are dominant to "b" and "y," respectively) will yield all dihybrid offspring. When those offpspring are crossed, the result is usually a 9:3:3:1 phenotypic ratio. But what if the locus "B" and "Y" did not sort independently (i.e., they were linked, at least partially)? It would mean "BY" and "by" are now more likely. How would this specifically affect the expected 9:3:3:1 ratio? To...
What are the expected phenotypic ratios for the following cross: A/a: B/B : C/c x A/a...
What are the expected phenotypic ratios for the following cross: A/a: B/B : C/c x A/a : b/b : C/c? Assume all genes are unlinked and are not in the same chemical pathway. Assume that genes A and B show complete dominance but gene C shows codominance.
A genotypic ratio of 1:2:1 and a phenotypic ratio of 3:1 results from a(n) _______ cross.
A genotypic ratio of 1:2:1 and a phenotypic ratio of 3:1 results from a(n) _______ cross. A. test B. monohybrid C. dihybrid D. allelic
In a cross involving independently assorting loci, the cross BBYY x bbyy (assume "B" and "Y"...
In a cross involving independently assorting loci, the cross BBYY x bbyy (assume "B" and "Y" are dominant to "b" and "y," respectively) will yield all dihybrid offspring. When those offpspring are crossed, the result is usually a 9:3:3:1 phenotypic ratio. But what if the locus "B" and "Y" did not sort independently (i.e., they were linked, at least partially)? It would mean "BY" and "by" are now more likely. How would this specifically affect the expected 9:3:3:1 ratio? To...
please answer all for a thumbs up 7. Which phenotypic ratio would you expect following a...
please answer all for a thumbs up
7. Which phenotypic ratio would you expect following a monohybrid cross? 1:1 2:1 3:1 1:1:1 1:1:1:1 9:3:3:1 8. Which phenotypic ratio would you expect following a test cross involving two genes? 1:1 2:1 3:1 1:1:1 1:1:1:1 9:3:3:1 9. Which phenotypic ratio would you expect following a test cross involving one gene? 1:1 2:1 3:1 1:1:1 1:1:1:1 9.2.2.1
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
What is the phenotypic ratio expected after a dihybrid self cross displaying dominant suppression? How do...
What is the phenotypic ratio expected after a dihybrid self cross displaying dominant suppression? How do you work this out? I know its 13:3 but how do they get this?
When you cross 2 heterozygous black cats (Bb) the expected mendelian phenotypic ratio of black (Bb)...
When you cross 2 heterozygous black cats (Bb) the expected mendelian phenotypic ratio of black (Bb) to gray (bb) offspring is: B:G = 2:1 B:G= 3:1 B:G=1:3 B:G= 1:1 or can't be calculated
answer and explain please 3. If the following cross was carried out, what are the expected...
answer and explain please
3. If the following cross was carried out, what are the expected adult progeny phenotypes and genotypes? What are the expected genotypic and phenotypic ratios? xwe 4. In the above theoretical experiment, if the CyO balancer is replaced with a regular chromosome (marked with Cy), would you expect to obtain the same results? Why or why not?
Question 12 only. Punnett's square analysis for the parental cross r Rr Rr 9) If we...
Question 12 only.
Punnett's square analysis for the parental cross r Rr Rr 9) If we used the above offspring (F1) in a new cross, what would be the genotypes and phenotypes of the offspring of the Fz generation? 10) What is the genotypic ratio of the F2 generation? 11) What is the phenotypic ratio of the F2 generation? 12) What would be the genotypic and phenotypic ratios of offspring from a cross between a homozygous recessive parent (r r)...
please answer all for a thumbs up
7. Which phenotypic ratio would you expect following a monohybrid cross? 1:1 2:1 3:1 1:1:1 1:1:1:1 9:3:3:1 8. Which phenotypic ratio would you expect following a test cross involving two genes? 1:1 2:1 3:1 1:1:1 1:1:1:1 9:3:3:1 9. Which phenotypic ratio would you expect following a test cross involving one gene? 1:1 2:1 3:1 1:1:1 1:1:1:1 9.2.2.1
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
answer and explain please
3. If the following cross was carried out, what are the expected adult progeny phenotypes and genotypes? What are the expected genotypic and phenotypic ratios? xwe 4. In the above theoretical experiment, if the CyO balancer is replaced with a regular chromosome (marked with Cy), would you expect to obtain the same results? Why or why not?
Question 12 only.
Punnett's square analysis for the parental cross r Rr Rr 9) If we used the above offspring (F1) in a new cross, what would be the genotypes and phenotypes of the offspring of the Fz generation? 10) What is the genotypic ratio of the F2 generation? 11) What is the phenotypic ratio of the F2 generation? 12) What would be the genotypic and phenotypic ratios of offspring from a cross between a homozygous recessive parent (r r)...
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