Plant Breeding & Genetics Quiz 5
1 / 50
In crop improvement programmed haploids are of great importance because they__________________?
2 / 50
The smallest unit of recombination in the chromosome is called___________________?
3 / 50
The spread of genes from one breeding population to another by migration which may result in changes in gene frequency is called________________?
4 / 50
The cell theory was propounded by____________________?
5 / 50
A place or area where maximum variability of crop plants is observed__________________?
6 / 50
The term heterosis was coined by____________________?
7 / 50
The term recurrent selection was coined by_________________?
8 / 50
Mendel was lucky to use pea plants for genetical experiments because__________________?
9 / 50
RNA contains__________________?
10 / 50
System of mating were given by_________________?
11 / 50
The term homeostasis was coined by_____________________?
12 / 50
Gynandromorphy in Drosophila because of_________________?
13 / 50
Plants having monoecious flowers are found in____________________?
14 / 50
Ribosomes are important because they help in __________________?
15 / 50
The nucleic acids comprise of_________________?
16 / 50
Ratio of additive variance to phenotypic variance is called___________________?
17 / 50
Which of the cell organelle is considered to be rich in catabolic enzymes_____________________?
18 / 50
One of the following is not an advantage of genetic engineering___________________?
19 / 50
Organisms that can synthesize all their substances from simple inorganic molecules are termed as____________________?
20 / 50
Artificial vegetative reproduction is done by_________________?
21 / 50
The change in chromosome number which involves the entire set of genome is known as______________?
22 / 50
Genetic correlation between two variables may be due to___________________?
23 / 50
When pollination and fertilization occur in unopened flower bud it is known as__________________?
24 / 50
Chemically DNA differs from RNA by __________________?
25 / 50
Parthenocarpy is the production of____________________?
26 / 50
The concept of diallel selective mating was developed by____________________?
27 / 50
If a plant is heterozygousand is designated (BbMm)and produces two kinds of gametes either (BM)or (bm), then the possibility of (bm) gametes fertilizing either (BM) or (bm) is_________________?
28 / 50
In meiosis homologous chromosomes separate from each other in ______________________?
29 / 50
Name chromosome was coined by ___________________?
30 / 50
The chief function of the centro mere concerns___________________?
31 / 50
Strands of DNA are bounded by___________________?
32 / 50
The term vertical resistance and horizontal resistance were first used by________________________?
33 / 50
A transonic individual has chromosome number____________________?
34 / 50
A species or type of a plant derived from doubling the chromosome of the F1 hybrid of two known species is known as__________________?
35 / 50
The experimental design which controls fertility variation in two directions in known as_________________?
36 / 50
In sunflower, production of foundation seed requires as isolation___________________?
37 / 50
Top cross was first suggested by__________________?
38 / 50
The carrier of genetic information is __________________?
39 / 50
A healthy plant not selling seed may be due to____________________?
40 / 50
International institute for Tropical Agriculture is located at______________________?
41 / 50
Conservation of germplasm under natural condion is called_________________?
42 / 50
The slow process by which new types of organisms arise from existing forms by genetics variation is called_______________________?
43 / 50
Occurrence of cells in diploid organisms containing multiples of the 2n genomes is known as____________________?
44 / 50
Electron microscope was invented by _________________?
45 / 50
Theory of mutation was given by___________________?
46 / 50
If diploid chromo me number in flowering plant is 8 then 4 chromosomes will be present in_________________?
47 / 50
The term gene was coined by__________________?
48 / 50
Which of the following had great influence on Drawing during during formulation of his theory of natural selection_________________?
49 / 50
If the cell of an organism (heterozygous) for two pairs of genes represented by Aa, Bb, undergoes meiosis then the possible genotype of gametes are________________?
50 / 50
The smell in onion bulb is due to________________?
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