Ratio of recessive epistasis is :-

The phenomenon in which an allele of one gene suppresses the activity of a n allele of another gene is known as :-

The four type of combs in fowls are formed by the following number of genes:-

When two non – allelic gene pair on the same homologue are singularly defective but together produce a normal phenotype, the phenomenon is called:-

The usual mendelian ratio 9:3:3:1 when the duplicate dominant alleles of both the loci produces same phenotypic effect without any cumulative effect , is modified as:-

In squash, plants with double recessive homozygosity produces the following type of fruit:-

In rodants the coat colour is due to the dominant gene C & the gene A is for the agouti pattern .Which of the following genotype shall produce the agouti phenotype expression:-

What shall be the epistatic ratio of F2 offspring of two genes with independednt as also with additive effect:-

When a dominant allele at one locous & the recessive allele at the other locus produce the same phenotype effect, the ratio of dominant & recessive would be:-

The recessive genes produce the following type of comb in fowls:-

During epistasis interaction operating among two gene loci, what shall be the ratio of F2 Off-spring having the following type of comb:-

In rodants, a double recessive homozygous individual , shows the following type of coat colour:-

The epistasis of inhibitory gene is seen in:-

The complimentary recessive gene ratio during the epistatic interaction is modified as :-

In rodants, the coat colour is due to the dominant gene C & the gene A for agouti pattern.What shall be the phenotype of an offspring having the genotype ccAa:-

The coat colour in dogs is determined by the genes B or b whereas the gene A is epistatic over gene B or b .What shall be the phenotype of an offspring having genotype aaBb:-

Duplicate genes have been recorded to control the shape of the fruit in:-

If in shephard’s purse, two pairs of genes A & B control the shape, what shall be the genotype of a top shaped fruit:-

In Lathyrus the dominant gene P is responsible for corolla colour & the dominant gene C complementary the expression of the gene P .Which among the following genotype shall produce white flowers:-

In maize the anthocyanin develops in the grain due to three pairs genes , two of which are designated as:-

In dogs, the coat colour is due to the genes B or b but the gene A is epistatic over the genes B or b. What shall be the genotype of a coloured offspring:-

When one gene express itself in more than two stages, then it is called:-

Ratio of complementary gene is:-

Which one of ten following traits of garden pea studied by Mendel was a recessive features:-

Two crosses between the same pair of genotypes & phenotypes in which the sources of the gametes are reversed in on cross is known as:-

A plant of F1 generation with genotype AABbCC on selfing produces which of the following phenotype ratio in F2 generation:-

In a cross between RrYy hybrids the filial genotype:-

When a pure red & pure white or Mirabilis jalapa crossed then we gets pink.When this hybrid is crossed with recessive white then phenotypic ratio is:-

If a hybrid red flowered plants of pea are crossed back to pure flowered parent the progeny will show

When F1 generation hybrid tall Tt is crossed with dwarf tt parent it is a case of :-

When hybridization occur in between long & dwarf plants then 1: 1 ratio is gained then genotype or parents was:-

Law of Mendel which is not completely applicable is:-

If a homozygous red flowered plant is crossed with a homozygous white flowered plant, the offspring would be:-

A monohybrid cross between two plants, one having 24 cm long internodes & the other having 12 cm long internodes, produced F1 hybrids all having 18 cm long internodes . This is a case of :-

Pure line breed refers to:-

How many types of gametes will be formed by the genotypes D/d ; E/e ; F/f:-

Incomplete dominance is found in:-

How many types of genotypes are formed in F2 progeny obtained from self pollination of dihybrid F1:-

How many different kinds of gametes may be produced by an organism with the genotype RrYy:-

If F1 generation is crossed with recessive parent , then the cross will be:-

The exception of law of independent assortment is:-

When a character is located at the same locus, the stage is called:-

If yellow & round ( YYRR) & green Wrinkled ( yyrr ) characters are crossed then the generation will be:-

How many traits of seed did Mendel used in his experiments:-

How many types of genetically different gametes will be produced by a heterozygous plant having the genotype AABbCc:-

In a dihybrid F1 progeny from a cross AABB X aabb , the genotype AABB,AABb , AaBB & aabb will be found in the ratio of:-

When AABB & aabb are crossed in F2 generation, the ratio of AaBb will be:-

Mendel’s law of independent assortment can be described by :-

A cross between a homozygous recessive & a heterozygous plant is called :-

In hybridization, Tt X tt gives rise to the progeny of ratio :-