A. Hardy (1908)
B. Thoday (1953)
C. Salisbury (1940)
D. Muller (1950)
Correct Answer: Thoday (1953) ✔
Last Updated: July 02, 2019
Related MCQs
- Which statement is true__________?
- The cellular structure which always disappears during mitosis is__________?
- The diameter of mitochondria is __________?
- Which of the cell organelle is considered to be rich in catabolic enzymes__________?
- Carbohydrates synthesis is carried out by __________?
- Which part of cell is important for and synthesis protoplasm __________?
- Plastids bring about__________?
- Who discovered mitochondria__________?
- Ribosomes are important because they help in __________?
- Electron microscope was invented by __________?
- Chemically DNA differs from RNA by __________?
- Name chromosome was coined by __________?
- The carrier of genetic information is __________?
- The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________?
- When a wheat variety with red kernels (homozygous for two non allelic and independent dominant genes) is crossed with white kenneled wheat (homozygous for two recessive non allelic independent genes), the phenotypic ratio in the F2 generation would be__________?
- The enzymes and pigments associated with photosynthesis are located in __________?
- Single celled plants are called__________?
- 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 __________?
- Organisms that can synthesize all their substances from simple inorganic molecules are termed as__________?
- The giant chromosomes of Drosophila are found in__________?
- The role of nucleus in regulating the morphology of the plant was discovered in__________?
- The spread of genes from one breeding population to another by migration which may result in changes in gene frequency is called__________?
- A mutant organism (bacterium) that will not grow on a minimal medium does so on the addition of some grown factor is known as __________?
- The reason why mutations which are harmful do not eliminated from gene pool is that__________?
- Which feature is not found in all living beings__________?
- Selenium unigram is used as__________?
- A transonic individual has chromosome number__________?
- The first attempt to show linkage in plants were done in__________?
- When two genes are situated very close together in a chromosome__________?
- Eugenics refers to__________?
- The term gene was coined by__________?
- Theory of mutation was given by__________?
- A normal plant suddenly started reproducing parthengentically. the number of chromosomes of the second generation compared to the parent plant will be__________?
- A cross of hybrid with one of its recessive parent is termed__________?
- The physical appearance of an organism is denoted by__________?
- A cross of unlike organisms is termed as__________?
- Abnormal cell with random number of chromosomes is__________?
- which of the following probably occur when a diploid cell undergoes normal meiotic division__________?
- All the individuals derived by vegetative propagation from a single individual is known as__________?
- A polyploidy species with genomes derived from the same original species is an__________?
- An auxotroph is__________?
- 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__________?
- If two opposite alleles come together, and one of the two finds expression and mask the other in he body this facts is explained as__________?
- mitosis is the normal process in a living cell but sudden and abnormal mitosis in an organ will some time result in__________?
- The mechanism ensuring genetic continuity in mitosis is__________?
- The offspring of a cross between twp individuals differing in at least one set of characters is called__________?
- Linked gene may be separated by the process of__________?
- Many groups of insects have developed resistance to DDT and other insecticides as a result of__________?
- Suppose that out of 1000 offspring’s in the generation of a dithered cross, 748 are tall and hairy, 6 are tall and smooth, 4 are short and hairy and 242 are short and smooth. what is the explanation for this kind of ratio ?
- A species or type of a plant derived from doubling the chromosome of the F1 hybrid of two known species is known as__________?
- One of the following is not a technique in hybridization__________?