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Plant Breeding & Genetics Quiz 8

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Plant Breeding & Genetics Quiz 8

1 / 50

A mutation which kills 50% of the individual that carry the mutation is known as_________________?

2 / 50

The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________________?

3 / 50

From a single ear of corn a farmer planted 300 kernels which produced 225 tall and 75 short plants. the genotype of these offsprings are most likely to be_____________________?

4 / 50

Global gene bank of Potato is located at_____________________?

5 / 50

Electron microscope was invented by _________________?

6 / 50

Low magnitude of genotype x environamental interaction indicates__________________?

7 / 50

Plastids bring about___________________?

8 / 50

Allogamy leads to___________________?

9 / 50

Headquarter of union for the protection of new plant varieties is in__________________?

10 / 50

Year 1900 was significant for geneticists due to__________________?

11 / 50

Drought tolerance is associated with ____________________?

12 / 50

From which part of the coconut tem coir is obtained_____________________/

13 / 50

Organic evolution through large discontinuous variations was propound by__________________?

14 / 50

A gene which enhances the natural mutations rate of another gene in the same genome is kanown as___________________?

15 / 50

A useful process for determining whether an individual is homozygous or heterozygous is_____________________?

16 / 50

Plasmids are discovered by___________________?

17 / 50

mitosis is the normal process in a living cell but sudden and abnormal mitosis in an organ will some time result in__________________?

18 / 50

Dee-Geo-Woogen is the source of dwarfing gene in___________________?

19 / 50

A rearrangement of a group of genes in a chromosome in such a way that their order in the chromosomes is reversed is known as _____________________?

20 / 50

When an albino plant of maize (female) is crossed with normal green plant (male) all plants in the progeny are albino because___________________?

21 / 50

A polyploidy species with genomes derived from the same original species is an_________________?

22 / 50

Law of parallele variation was given by___________________?

23 / 50

In rice, brown plant hopper has no preference for___________________?

24 / 50

The first ever inter generic crossed has been successfully performed between bamboo and sugarcane by_______________________?

25 / 50

The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________________?

26 / 50

Amount of DNA is the diploid cells____________________?

27 / 50

Concept of triple test cross of analysis was developed by____________________?

28 / 50

RNA contains_____________________?

29 / 50

Homozygous population include_________________?

30 / 50

The giant chromosomes of Drosophila are found in_____________________?

31 / 50

Mendel studied contrasting characters for his breeding cxperiments with peas which of the following character he did not study_______________?

32 / 50

Concept of biparental mating was developed by__________________?

33 / 50

Abnormal cell with random number of chromosomes is__________________?

34 / 50

Who coined the term genetic flexibility and phenotypic flexibility___________________?

35 / 50

Mass pedigree method was developed by__________________?

36 / 50

Discriminant function of plant selection was suggested by____________________?

37 / 50

Neurotoxin is found in___________________?

38 / 50

Dominance hypothesis of heterosis was first proposed by__________________?

39 / 50

If the offspring of F, (blue) is crossed with white male parent the result will be______________________?

40 / 50

The diameter of mitochondria is __________________?

41 / 50

Single celled plants are called__________________?

42 / 50

Fertilization in a flower occurs within the____________________?

43 / 50

The variety of genes and genotypes found in a particular crop special are_____________________?

44 / 50

Protoandry is found in____________________?

45 / 50

Edible part of orange is__________________?

46 / 50

Gamatophytic system of self incompatibility was first discovered by____________________?

47 / 50

Who coin the term genetic load _____________?

48 / 50

Dispersal of seeds by parachute mechanism is present in__________________?

49 / 50

Biometrics for the study of quantitative genetics was provided by ___________________?

50 / 50

In the F2 generation, genotypic and phenotypic ratios are identical in cases of___________________?

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