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
Last Answer : a. Back cross
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
Description : Progeny of foundation or registered seed
Last Answer : Ans. Certified seed
Description : Progeny of breeder seed
Last Answer : Ans. Foundation seed
Description : Progeny selection is also known as
Last Answer : Ans. Ear to row method of selection
Description : A progeny of single homozygous, self pollinated crops
Last Answer : Ans. Pure line
Description : Progeny of a single plant, obtained by asexual reproduction
Last Answer : Ans. Clone
Description : Progeny of a single cross fertilized heterozygous individual
Last Answer : Ans. Inbred
Description : The increased performance of F1 hybrid over its parents is called a. Heterosis b. Crossing over c. Dominance d. Heredity
Last Answer : a. Heterosis
Description : The average value for a character of the two parents of the concerned hybrid.
Last Answer : Ans. Mid parent/Average Heterosis
Description : Repeated application of treatments
Last Answer : Ans. Replication
Description : Through which are the characters are transferred from parents to progeny? -Do You Know?
Last Answer : answer:
Description : Through which are the characters are transferred from parents to progeny?
Last Answer : DNA
Description : 1. The World Consumer Day is being observed on which date? 2. Which is the 193rd member of UNO? 3. Through which are the characters are transferred from parents to progeny? 4. Gangotri, ... ? 20. Bronze coins of Nataraja cast during the Chola period invariably show the deity with howmany hands?
Last Answer : Answer : 1. 15th March 2. South Sudan 3. DNA 4. Uttrakhand 5. Gargi 6. Consolidated Fund 7. Decreases 8. Incomes 9. Oblate spheroid 10. Jhelum 11. Geneva 12. Genetics 13. Erstwhile ... 16. Unchanged 17. Due to osmotic shock 18. Central Statistical Organisation 19. Cyclonic activity 20. Four hands
Description : Crossing of plants through fusion of somatic cell
Last Answer : Ans. Somatic hybridization
Description : A variety produced by crossing in all combinations a number of lines that combine well each other
Last Answer : Ans. Synthetic variety
Description : In which stage, crossing over takes place?
Last Answer : Ans. Pachytene stage
Description : Crossing over and recombination occur during
Last Answer : Ans. Meiosis division
Description : In maize, hybrid vigour is exploited by (a) inducing mutations (b) bombarding the protoplast with DNA (c) crossing of two inbred parental lines (d) harvesting seeds from the most productive plants.
Last Answer : (c) crossing of two inbred parental lines
Description : In maize, hybrid vigour is exploited by (a) crossing of two inbred parental lines (b) harvesting seeds from the most productive plants (c) inducing mutations (d) bombarding the seeds with DNA.
Last Answer : (a) crossing of two inbred parental lines
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.
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
Description : The hybrid variety of pomegranate
Last Answer : Ans. Amlidana
Description : A hybrid produced using nucleous of one parent cell and cytoplasm of both the cell
Last Answer : Ans. Cybrid
Description : When superiority of the hybrid to the standard commercial check variety
Last Answer : Ans. Economic heterosis
Description : Hybrid variety of rice is developed by using
Last Answer : Ans. GMS and CGMS line
Description : 1 st Intergeneric hybrid was
Last Answer : Ans. Raphino brassica (Radish x Cabbage)
Description : Hybrid variety was first exploited in
Last Answer : Ans. Maize
Description : Phenotypic ratio of Dicross hybrid
Last Answer : Ans. 9:3:3:1
Description : Phenotypic ratio of Monocross hybrid
Last Answer : Ans. 3:1
Description : An individual cannot pass on to its progeny the experiences of its lifetime.” Justify the statement with the help of an example and also give reason for the same. -Biology
Last Answer : Experience achieved during the lifetime of an individual does not make any change in the gene of the individual. For example, if a person reads a book on birds, the knowledge he earns ... knowledge will not get automatically transmitted to his next generation. Such a trait is called acquired trait.
Description : Superiority of F1 hybrids over both of its parents is termed as
Last Answer : Ans. Heterosis
Description : Give two reasons for the appearance of variations among the progeny formed by sexual reproduction. -Biology
Last Answer : Now, the two major reasons for appearance of variation among the progeny formed from sexual reproduction are; crossing over in which the DNA gets exchanged between the homologous chromosomes during the meiosis that causes variation in the offspring.
Description : A blue colour flower plant denoted by BB is cross bred with that of white colour flower plant denoted by bb. (a) State the colour of flower you would expect in their F1 generation plants. (b) What ... -pollinated? (c) State the expected ratio of the genotypes BB and Bb in the F2 progeny. -Biology
Last Answer : This is your Answer.
Description : A Mendelian experiment consisted of breeding pea plants bearing violet flowers with pea plants bearing white flowers. What will be the result in F1 progeny ? -Science
Last Answer : Violet flowers
Description : When white -flowered plant were crossed with pure red - flowered plants, the progeny were - (a) White flowered (b) Red flowered (c) Exhibiting 3:1 ratio of red to whiteflowered plants (d) Exhibiting 1:1 ratio of red to whiteflowered plants
Last Answer : Ans:(b)
Description : All the progeny obtained from a single plant by vegetative pro pa-gallon are called - (1) Clones (2) Pure line (3) Indred line (4) Pedigree line
Last Answer : (1) Clones Explanation: A clone is obtained by vegetative propagation of a single plant and it propagates vegetatively in successive generation. It offers excitation for exploiting desirable ... their original characteristics after many years of vegetative propagation i.e. they are stable.
Description : Which of the following is correct for r-selected species? (a) Large number of progeny with small size (b) Large number of progeny with large size (c) Small number of progeny with small size (d) Small number of progeny with large size
Last Answer : (a) Large number of progeny with small size
Description : The progeny of breeder seed is: (A)Formation seed (B) Nucleus seed (C) True seed (D) Certified seed
Last Answer : (A)Formation seed
Description : A woman with two genes for haemophilia and one gene for colour blindness on one of the X' chromosomes marries a normal man. How will the progeny be? (a) 50% haemophilic colour-blind sons ... ). (c) All sons and daughters haemophilic and colour- blind. (d) Haemophilic and colour-blind daughters.
Last Answer : (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier).
Description : .A normal green male maize is crossed with albino female. The progeny is albino because (a) trait for a albinism is dominant (b) the albinos have biochemical to destroy plastids derived from green male (c) plastids are inherited from female parent (d) green plastids of male must have mutated.
Last Answer : (c) plastids are inherited from female paren
Description : . Select the incorrect statement. (a) Human males have one of their sex-chromosome much shorter than other. (b) Male fruit fly is heterogametic. (c) In male grasshoppers, 50% of sperms have no sex-chromosome. (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
Last Answer : (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
Description : A and B genes are linked. What shall be genotype of progeny in a cross between AB/ab and ab/ab? (a) AAbb and aabb (b) AaBb and aabb (c) AABB and aabb (d) None of these
Last Answer : (b) AaBb and aabb
Description : A man of A-blood group marries a woman of AB blood group. Which type of progeny would indicate that man is heterozygous A? (a) AB (b) A (c) O (d) B
Last Answer : B
Description : In hybridisation, Tt × tt gives rise to the progeny of ratio (a) 2 : 1 (b) 1 : 2 : 1 (c) 1 : 1 (d) 1 : 2.
Last Answer : (c) 1 : 1
Description : What is common between vegetative reproduction and apomixis? (a) Both are applicable to only dicot plants. (b) Both bypass the flowering phase. (c) Both occur round the year. (d) Both produce progeny identical to the parent.
Last Answer : (d) Both produce progeny identical to the parent
Description : Select the true statement a. Breeder seed is progeny of nucleus seed b. Breeder seed tag is of golden yellow color c. Breeder seed is 100 % pure seed d. All of these
Last Answer : d. All of these
Description : What is another name for progeny?
Last Answer : Offspring
Description : What is common between vegetative reproduction and Apomixis?a)Both are applicable to only dicot plantsb)Both bypass the flowering phasec)Both occur round the yeard)Both produces progeny identical to the paren
Last Answer : Both produces progeny identical to the parent