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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 2151. |
Question : What is gene plantation? |
| Answer» Solution :Cultivation of rare or selected varieties of PLANTS (wild or cultivated) in GARDENS or arboretums for CONSERVATION of their rare or beneficial genes is called GENE PLANTATION. | |
| 2152. |
Question : What is gene pool? |
| Answer» SOLUTION :The AGGREGATE of all the genes and their alleles PRESENT in an INTERBREEDING population is known as gene POOL. | |
| 2153. |
Question : What is Gene bank ? |
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Answer» Conservation of RARE genes. |
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| 2154. |
Question : What is gene mapping? Write its uses. |
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Answer» Solution :The diagrammatic representation of position of genes related distances between the adjacent genes is called genetic mapping. It is directly proportional to the frequency of recombination between them . It is also called linkage map. Uses of genetic mapping. `**` It is USED determine gene ORDER , identify the LOCUS of gene and calculate the distances between genes. `**`They are useful in predicting results of dihybrid and trihybrid crosses. `**` It allows the GENETICISTS to understand the overall genetic complexity of particular organism. |
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| 2155. |
Question : What is gene interaction? |
| Answer» SOLUTION :A single PHENOTYPE is CONTROLLED by more than ONE SET of genes, each of which has two or more alleles. This phenomenon is called Gene Interaction. | |
| 2156. |
Question : What is gene frequency? |
| Answer» SOLUTION :The proportion of an allele in the gene pool as COMPARED with other ALLELES at the same locus is TERMED as gene FREQUENCY. | |
| 2157. |
Question : What is gemmule? How is gemmule formed? |
| Answer» Solution :GEMMULE is the internal bud formed by AGGREGATION of archeocytes in SPONGES to overcome unfavourable SEASON. | |
| 2158. |
Question : What is gemmule ? How is gemmule formed ? |
| Answer» SOLUTION :GEMMULE is the internal bud formed by aggregation of archeocytes iin SPONGES to OVERCOME UNFAVOURABLE season. | |
| 2159. |
Question : What is GEAC ? Give its function. |
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Answer» Solution :The manipulation of living ORGANISMS by the human race cannot GO on any further without regulation. Some ethical standards are required to EVALUATE the normality of all human activities that might help or HARM living organisms. Going beyond the morality of such issues, the biological significance of such things is also important Genetic modification of organisms can have unpredicatable results when such organisms are introduced into the ecosystem. Therefore, the Indian Government has set up organisations such as GEAC (Genetic Engineering Approval Committee). Which will make DECISIONS regarding the validity of GM research and the safety of introducing GM-organisms for public services. |
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| 2160. |
Question :What is GEAC and what are its objectives? |
| Answer» Solution :GEAC stands for GENETIC Engineering Approval Committee. Objectives of GEAC are (i) to examine the validity of GM research and (ii) to inspect SAFETY in the use of GMOS for public. | |
| 2161. |
Question : What is GEAC and what are its objectives? |
| Answer» Solution :(Genetic Engineering Approval Committee) is an Indian government organisation. Its objectives are to: (a) EXAMINE the validity of GM (Genetic modification of ORGANISM) RESEARCH. (B) inspect the safety of introducing GM for public services. | |
| 2162. |
Question :What is gastrulation :- |
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Answer» CLEAVAGE of zygote |
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| 2163. |
Question : What is gametogenesis ? Explain |
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Answer» Solution :GAMETOGENESIS is a processof formation of reproductive cell of ANIMALS performing sexual reproduction. Animals have two types of cells : Somatic cells and germinative cell. Somatic cells form VARIOUS organs of the body. They became double by mitotic DIVISION. Gametes are produced by successive mitosis and meiosis. Male gametes is known as spermatozoa. The process of producing SPERMS is called spermatogenesis. The process of producing egg cell is called oogenesis. |
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| 2164. |
Question : What is fused with Maize for manufacturing of genetically modified sugar in America |
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Answer» Brazzein |
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| 2166. |
Question : What is funicle? What is hilum? |
| Answer» Solution :The stalk of the OVULE is CALLED funicle. The point at which the funicle is attached to the BODY of ovule is called hilum. | |
| 2167. |
Question : What is function of copper -T ? |
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Answer» STOP cleavage |
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| 2168. |
Question : What is full form of IUCN ? |
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Answer» International Union for COMMUNITY and Nature |
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| 2169. |
Question : What is fret channel ? What is its function ? |
| Answer» SOLUTION :The lumen of STROMA lamellae is CALLED fret channel which HELPS in rapid transport of materials. | |
| 2170. |
Question : What is fragmentation in decomposition? |
| Answer» Solution :The PROCESS of break down of detritus into SMALLER particles is CALLED fragmentation. | |
| 2171. |
Question : What is frameshift mutation? |
| Answer» Solution :Mutations that RESULT in the addition or deletion of a single base pair of DNA that CHANGES the reading frame for the translation PROCESS as a result of which there is complete loss of normal protein structure and function are called Frameshift mutations. | |
| 2172. |
Question : What is founder effect? |
| Answer» Solution :When a SMALL group of individuals from some large population invades a NEW or isolated geographical region, these act as founder members. They carry limited portion of the parental gene pool. The descendant of these FOUNDERS in an isolated area will inherit the genes of their founders. The resemblance of the gene pool of descendants and founders was called founder.s effect by Mayr. | |
| 2173. |
Question : What is founder effect ? |
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Answer» Solution :Sometimes the CHANGE in ALLELE frequency is so different in the new sample of population that they become a different species. Small group of population called founders left their habitat and goes into new habitat. In new habitat this population (founders) shows different genotype frequency from that of the original population and leads to VARIATION. The original drifted population BECOMES founders and the effect is called founder effect. Rg Evolution of Darwin finches on Galapagos island from some members of birds of MAIN land. |
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| 2174. |
Question : What is found in the stomach of honey bees? |
| Answer» SOLUTION :nectar | |
| 2175. |
Question : What is formed by the breakdown of purine and pyrimidine in the human body? |
| Answer» Solution :Uric acid is FORMED in by the BREAKDOWN of PURINE and PYRIMIDINE in the human body. | |
| 2176. |
Question : What is foramen ovale and how is it related to fossa ovalis? |
| Answer» Solution :Foramen ovale is an OVAL opening in the interatrial septum of the foetal heart REPRESENTING the fossa ovalis which lies as a DEPRESSION on the right side of interatrial septum. | |
| 2177. |
Question : What is foramen of Monro? |
| Answer» SOLUTION :Foramen of Monro is a narrow opening that CONNECTS lateral VENTRICLE present in cerebrum with third ventricle present in diencephalon. | |
| 2178. |
Question : What is food web? |
| Answer» SOLUTION :INTERCONNECTED food CHAINS forming a network of food relationship between various species is called a food WEB. | |
| 2179. |
Question : What is a food web? |
| Answer» Solution :The natural INTERCONNECTION of FOOD CHAINS FORMS a food WEB. | |
| 2180. |
Question : What is food chain? Give an example. |
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Answer» Solution :(a) Food and FEEDING RELATION AMONG organisms makes a CHAIN like structure. (b) Grass - Deer - Lion. |
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| 2181. |
Question : What is food chain? |
| Answer» Solution :The TRANSFER of food from producers through a series of organisms with REPEATED EATING and being eaten is known as food CHAIN. | |
| 2182. |
Question : What is FOAM? |
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Answer» Solution :(Friends of the Arcata Marsh) It is a CITIZEN group of Arcata responsible for the upkeep and SAFEGUARDING of MARSHES and sanctuaries. |
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| 2183. |
Question : What is foetus? |
| Answer» SOLUTION :A mammalian EMBRYO when acquires the main FEATURES of the ADULT is called a foetus. | |
| 2184. |
Question : What is foetal ejection reflex? Explain how it leads to parturition? |
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Answer» Solution :On the basis of fully developed / foetus and signals produced from PLACENTA, contraction expulsion. Ejection of foetus are INCLUDED and mild uterine contractions are induced. This triggers release of OXYTOCIN from the maternal pituitary oxytocin acts on the uterine muscle and causes STRONGER uterine contractions. The combined effect OCCURING at a time of uterine contraction and oxytocin secretion continues resulting on stronger contraction of the baby out of the uterus through the birth canal - parturition. |
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| 2185. |
Question : What is foetal ejection reflex? |
| Answer» Solution :The mild UTERINE contraction signals for PARTURITION from the FULLY developed FOETUS and the PLACENTA. | |
| 2186. |
Question : What is flagellate motile spore called ? |
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Answer» CONIDIA |
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| 2187. |
Question : What is fermentation ? |
| Answer» Solution :Fermentation is defined as a chemical change BROUGHT about in an ORGANIC substrate DUE to the activity of MICROORGANISMS or ENZYMES produced by the microorganisms. | |
| 2188. |
Question : What is an eye of potato? |
| Answer» Solution :EYE' in POTATO is ACTUALLY a NODE bearing one or more axillary buds and REDUCED scaly leaves. | |
| 2189. |
Question : What is explained through Marsupials of Australia? |
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Answer» LOCAL ADAPTIVE Branching |
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| 2190. |
Question : What is explant? |
| Answer» Solution :The PART of PLANT which is USED in tissue culture for the procution of whole plant is CALLED explant. | |
| 2191. |
Question : What is exogamy? |
| Answer» SOLUTION :In exogamy, the male and FEMALE gametes are produced by DIFFERENT parents and they fuse to FORM a zygote. So it is biparental. e.g. Human - DIOECIOUS or unisexual animal. | |
| 2192. |
Question : What is Ex-Situ conservation ? Mention two examples. |
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Answer» Solution :It is the conservation of bio diversity in the settings controlled by man. EXAMPLE :- Botanical GARDENS, Zoological PARKS, wild life safari parks, ARBORETUM, seed bank. |
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| 2193. |
Question : What is Ex-Situ conservation? Mention two examples. |
| Answer» Solution :Protecting threatened animals and PLANTS out of their NATURAL HABITAT and placing them in special settings wherethey can be protected and GIVEN special care is called ex-situ conservation. e.g., zoological parks and botanicalgardens. | |
| 2194. |
Question : What is Ex-situ conservation? |
| Answer» Solution :Ex-situ conservation of selected RARE plants animals in places outside their NATURAL HOMES. It includes offsite COLLECTIONS and GENE banks. | |
| 2195. |
Question : What is evolutionary biology ? |
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Answer» Solution :Evolution is the sequence of GRADUAL changes from simple life FORMS to complex life forms, i.e. from PRIMITIVE ORGANISMS that lived over millions of year ago to new organisms that exist today. Human BEINGS are the most recent and most highly evolved among these organisms. To understand these changes we must know how the origin of life i.e. evolution of the earth, of stars and infact the whole universe took place. The study of these is known as evolutionary biology. |
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| 2196. |
Question : What is eutrophication ? Explain its consequenceon thelife of plantsand animals in suchwaterbodies . |
| Answer» Solution :Eutrophication is nutrientenrichment of waterbodies. Thisleads to ALGAL bloom causingexhaustionof oxygen . FINALLY , life SUPPORTING conditions are lost in theaffected water body . Thisleads to destruction of affected ECOSYSTEM . | |
| 2197. |
Question : What is Eutrophication? Mention its causes. |
| Answer» SOLUTION :Eutrophication is the NATURAL aging of a lake by NUTRIENT ENRICHMENT of its WATER. | |
| 2198. |
Question : What is Eutrophication? Discuss the phenomenon of accelerated eutrophication. |
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Answer» Solution :Eutrophication is defined as the natural aging of a lake by biological enrichment of its water, water in a young lake is COLD and clear to support life, with time, it is enriched with nutrients by streams draining into it."This encourages growth of aquatic life-plant and animal life. ORGANIC remains deposite at the bottom of the lake and with time makes the water WARMER. Eventually, floating plant develop in the lake, finally converting into land. Accelerated eutrophication is nutrient enrichment of water bodies due to human activities like passage of sewage. i) Large amount of nutrient in water causes excessive growth of planktonic ALGAE (called algal bloom) which impart characteristic colour to water bodies. II) Depletion of oxygen content of water leading to the death of the aquatic organisms. |
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| 2199. |
Question : What is Eutrophication ? |
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Answer» Solution :It is the natural aging of a lake by biological enrichment of its water. Due to ADDITION of nutrients such as nitrogen and phosphorus that encourage the growth of aquatic organism the accumulation of organic remains in course of time LEADS to shallowing of lake. Over the centuries the silt and organic debris piles up at the bottom of lake and encourage the growth of marsh plants in the shallow and begin to fill in the original lake basin. Eventually large masses of floating plants grows and finally converting into land. The POLLUTANTS from man.s activities such as effluents from the industries and homes radically accelerate the aging of lake. This phenomenon is called Cultural or Accelerated Eutrophication. Main contaminants INCLUDE nitrates, phosphates that act as plant nutrients. They increase the growth of algae, causing unsightly scumand unpleasant odours and depleting the DISSOLVED oxygen of water which isimportant for other aquatic life. |
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| 2200. |
Question : What is erythropoiesis? |
| Answer» Solution :The PROCESS of FORMATION of RED BLOOD cells is called erythropoiesis. | |