Different genetic cross regarding two independently assorting non allelic gene with complete dominance and their phenotypic ratio showed in a following. Which of the following is incorrect combination? 

	Genetic cross		Phenotype ratio
1	AABb X AaBb		3:1
2	Aabb X  AaBb		3:1:3:1
3	AABb X AaBB		1:1
4	Aabb X aaBb		1:1:1:1

#Question id: 4804

#Section 3: Genetics, Cellular and Molecular Biology

Formation of the following pattern in an ordered octad is due to what event during meiosis? Pattern: AAaaaaaAA

#Question id: 4805

#Section 3: Genetics, Cellular and Molecular Biology

What is maximum parental frequency for two genes if single cross over within two strands?

#Question id: 4806

#Section 3: Genetics, Cellular and Molecular Biology

Four incompletely link gene as cis configuration, Heterozygote ABCD/abcd produced a gamete with genotype AbCD is due to

#Question id: 4807

#Section 3: Genetics, Cellular and Molecular Biology

Three incompletely link marker gene was found. There is a marker A gene present in middle. Cross between aaBBcc X AAbbCC to produce heterozygous were allowed test cross, which of the following test cross offspring should be least frequent?

#Question id: 4808

#Section 3: Genetics, Cellular and Molecular Biology

When F1 female Drosophila of the genotype AaBbCc is test crossed, ( Gene A and B located at 10 map unit in transe configuration but gene C are independently assort for both gene. Which of the following test cross progeny that is that is more frequent?

#Question id: 4809

#Section 3: Genetics, Cellular and Molecular Biology

The upper most following figure above shows the locations of four genes on the genetic map of an organism; the lower figure shows the locations of the same four genes on a physical map derived from the nucleotide sequence of the DNA of that organism. The maps are not identical because