Principle Of Inheritance And Variation Question 606
Question: 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
Options:
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%
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Answer:
Correct Answer: C
Solution:
Due to linkage new combinations are minimum.