The increased performance of F1 hybrid over its parents is called a. Heterosis b. Crossing over c. Dominance d. Heredity

The increased performance of F1 hybrid over its parents is
called
a. Heterosis
b. Crossing over
c. Dominance
d. Heredity
by

1 Answer

Answer :

a. Heterosis
by

Related questions

When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called (a) heterosis (b) transformation (c) splicing (d) metamorphosis.

Description : When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called (a) heterosis (b) transformation (c) splicing (d) metamorphosis.

Last Answer : (a) heterosis

Test cross involves (a) crossing between two genotypes with dominant trait (b) crossing between two genotypes with recessive trait (c) crossing between two F1 hybrids (d) crossing the F1 hybrid with a double recessive genotype.

Description : Test cross involves (a) crossing between two genotypes with dominant trait (b) crossing between two genotypes with recessive trait (c) crossing between two F1 hybrids (d) crossing the F1 hybrid with a double recessive genotype.

Last Answer : (d) crossing the F1 hybrid with a double recessive genotype.

A common test to find the genotype of a hybrid is by (a) crossing of one F2 progeny with female parent (b) studying the sexual behaviour of F1 progenies (c) crossing of one F1 progeny with male parent (d) crossing of one F2 progeny with male parent

Description : A common test to find the genotype of a hybrid is by (a) crossing of one F2 progeny with female parent (b) studying the sexual behaviour of F1 progenies (c) crossing of one F1 progeny with male parent (d) crossing of one F2 progeny with male parent

Last Answer : (c) crossing of one F1 progeny with male parent

Test cross in plants or in Drosophila involves crossing (a) between two genotypes with recessive trait (b) between two F1 hybrids (c) the F1 hybrid with a double recessive genotype (d) between two genotypes with dominant trait.

Description : Test cross in plants or in Drosophila involves crossing (a) between two genotypes with recessive trait (b) between two F1 hybrids (c) the F1 hybrid with a double recessive genotype (d) between two genotypes with dominant trait.

Last Answer : (c) the F1 hybrid with a double recessive genotype

Repeated crossing of hybrid progeny back to one of its parents is called as — a. Back cross b. Top cross c. Recurrent cross d. Double cross

Description : Repeated crossing of hybrid progeny back to one of its parents is called as — a. Back cross b. Top cross c. Recurrent cross d. Double cross

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Which idea is depicted by a cross in which the F1 generation resembles both the parents? (a) Inheritance of one gene (b) Co-dominance (c) Incomplete dominance (d) Complete dominance

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The cross of F1 hybrid with an individual having recessive phenotype for concerned trait is called a. Test crossb. Multiple crossc. Top crossd. Polly cross

Description : The cross of F1 hybrid with an individual having recessive phenotype for concerned trait is called a. Test cross b. Multiple cross c. Top cross d. Polly cross

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In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation all pink flowers were obtained. When pink flowers were selfed, the F2 generation showed white, red and pink flowers. Choose the incorrect statements from the following. (a) Law of segregation does not apply in this experiment. (b) This experiment does not follow the Principle of Dominance. (c) Pink colour in F1 is due to incomplete dominance. (d) Ratio of F2 is 1 4 2 4 1 4 ( ) red p : ( ink w ) : ( ) hite .

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Repeated crossing of hybrid progeny back to one of its parents

Description : Repeated crossing of hybrid progeny back to one of its parents

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Description : The quickest method of plant breeding is — a. Mutation breeding b. Back cross c. Heterosis breeding d. Selection

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Crossing over in diploid organism is responsible for (a) segregation of alleles (b) recombination of linked alleles (c) dominance of genes (d) linkage between genes.

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Superiority of F1 hybrids over both of its parents is termed as

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RR (Red) Antirrhinum is crossed with white (WW) one. Offspring RW are pink. This is an example of (a) dominant-recessive (b) incomplete dominance (c) hybrid (d) supplementary genes.

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