Passage I
The figure below is a pedigree that shows the inheritance of a trait, Trait G, in a family. The presence of Trait G in an individual is determined entirely by Gene G. Gene G has 2 alleles: G, which is dominant, and g, which is recessive.
Each individual represented in the pedigree was assigned a number (shown below the symbol for the individual) for reference. Scientists determined that the Gene G genotype of Individual 20 is gg and that the Gene G genotype of Individual 21 is Gg. Based on this information, the scientists concluded that Trait G is a recessive trait.
6. Based on the information provided, will an individual with the Gene G genotype Gg have Trait G ?
Your Answer is
Correct Answer is J
Explanation
It can be seen from the figure that Trait G is recessive, that is, gg (alpha inheritance is recessive, for example, No. 14 and No. 15 without Trait G can give birth to No. 22 and No. 23 of Trait G) ;
There is dominant allele G in Gg, so Gg genotype will not have Trait G