Mendel was successful in discovering the principles of inheritance asA. He was a famous mathematicianB. He took pea plants for his experimentsC. He had an in-depth knowledge on hybridisationD. He did not encounter linkage between the ganes for the characters he considered

Mendel was successful in discovering the principles of inheritance asA

1.	Mendel was successful in discovering the principles of inheritance asA. He was a famous mathematicianB. He took pea plants for his experimentsC. He had an in-depth knowledge on hybridisationD. He did not encounter linkage between the ganes for the characters he considered
Answer» Correct Answer - D

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ABO blood group is determined by three different alleles. How many genotypes and phenotypes are possible?A. `{:(,"Genotype",,"Phenotype"),((a),6,"",4):}`B. `{:(,"Genotype",,"Phenotype"),((b),3,"",1):}`C. `{:(,"Genotype",,"Phenotype"),((c),4,"",6):}`D. `{:(,"Genotype",,"Phenotype"),((d),9,"",7):}`
In a back cross, a `F_(1)` hydrid is crossed with dominant parent , the offsprings :A. All will be tallB. 3 tall : 1 shortC. 1 tall : 1 shortD. 1 tall : 3 short
The gene intraction when on egenes masks the effect or When a gene pair hides the effect of another, the phenomenon is calledA. epistatic factorB. duplicate factorC. complementary factorD. supplementary factor
In a genetic cross having recessive epistasis, `"F"_(2)` phenotypic ratio would be:A. `12 : 3 : 1`B. `15 : 1`C. `9 : 6 : 1`D. `9 : 3 : 4`
The gene which suppresses and masks the expression of other is:A. recessiveB. epistasisC. co-dominantD. complementary
Recessive epistasis is defined as:A. a situation in which a gene pair in homozygous recessive condition masks the effect of one or both the member of another gene pairB. a situation in which the dominant allele of the first gene pair masks the effect of both the members of the second gene pair and the dominant allele of the second gene pair masks the effect of both the members of the first gene pairC. a situation in which one allele does not allow its alternative form to expressD. a situation in which the dominant allele of one gene pair masks the effect of both members of another gene pair
In shortorn cattle genes for red `(r_(1))`and white `(r_(2))` coat colour occcur. Crosses between red `(r_(1)r_(2))` and white `(r_(2)r_(2))` produced `(r_(1)r_(2))` roan. This an example ofA. epistasisB. co-dominanceC. complementary genesD. incomplete dominance
Sometimes a gene masks the expression of another, gene at a different locus. This phenomenon is known as:A. epistasisB. co-dominanceC. incomplete dominanceD. none of these
A gene whose phenotypic effect kills the bearer is called:A. lethalB. pleiotropicC. supplementaryD. complementary
Which of the following crosses and resultant phenotypic ratios are mismatched?A. `{:(,"Cross",,"Phenotypic ratio"),((a),"Tt"xx"Tt",-,3:1):}`B. `{:(,"Cross",,"Phenotypic ratio"),((b),"tt"xx"Tt",-,2:1):}`C. `{:(,"Cross",,"Phenotypic ratio"),((c),"TtYy"xx"ttyy",-,1:1:1:1):}`D. `{:(,"Cross",,"Phenotypic ratio"),((d),"TtYy"xx"TtYy",-,9:3:3:1):}`

Mendel was successful in discovering the principles of inheritance asA. He was a famous mathematicianB. He took pea plants for his experimentsC. He had an in-depth knowledge on hybridisationD. He did not encounter linkage between the ganes for the characters he considered

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