In a certain plant, red flowers (R) are dominant to white flowers (r) and tallness (T) is dominant to dwarfness (t). A heterozygous plant (RrTt) is backcrossed with a double recessive plant (rrtt). If the gene loci for colour and size and situated very close together on the same chromosome, the expected percentage of offsprings could be approximately

Question

TuteeHUB · Accepted Answer

1% 1% 49% 49%

TuteeHUB · Answer

tall red tall white dwarf red dwarf white 25% 25% 25% 25%

TuteeHUB · Answer

49%, 49% 1% 1%

TuteeHUB · Answer

49% 1% 1% 49%

1.	In a certain plant, red flowers (R) are dominant to white flowers (r) and tallness (T) is dominant to dwarfness (t). A heterozygous plant (RrTt) is backcrossed with a double recessive plant (rrtt). If the gene loci for colour and size and situated very close together on the same chromosome, the expected percentage of offsprings could be approximately
A.	tall red tall white dwarf red dwarf white 25% 25% 25% 25%
B.	49%, 49% 1% 1%
C.	49% 1% 1% 49%
D.	1% 1% 49% 49%
Answer» D. 1% 1% 49% 49%

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