Biology full course tests (mistakes)
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Biology full course tests (mistakes) - Marcador
Biology full course tests (mistakes) - Detalles
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173 preguntas
| 🇬🇧 | 🇬🇧 |
| The frequency of recombination between gene pairs on the same chromosomes as a measure of distance between genes was explained by | Alfred sturtevant |
| Reduction in the size of T-wave means | Coronary ischemia (a condition in coronary artery disease during which the heart tissue is slowly or suddenly starved of oxygen and other nutrients) |
| Cells in G0 phase | Exist the cell cycle |
| Which of the following glucose transporters is insulin-dependent? | GLUT-IV is insulin dependent and is responsible for the majority of glucose transport |
| Which of the following ecological pyramids is generally inverted ? | Pyramid of biomass in a sea |
| Extrusion of second polar body from egg nucleus occurs: | After the entry of sperm but before fertilization |
| Repiratory quotient (RQ) value of tripalmitin is | 102CO2/145O2=0.7 |
| Concanavalin A is | A lectin |
| Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is | Parietal |
| Purines found both in DNA and RNA are | Adenine and guanine |
| Expressed sequence tags (ESTs) refers to | Genes expressed as RNA |
| Phloem in gymnosperms lacks | Both seive tubes and companion cells |
| What is the genetic disorder in which an individual has an overall masculine development gynaecomastia, and is sterile ? | Klinefelter's syndrome |
| Xylem translocates | Mineral salts, water, some organic nitrogen and hormones |
| Persistent nucellus is the seed is known as | Perisperm eg. black pepper and beet |
| Cardiac output= | Stroke volume*heart rate |
| Polyblend, a fine powder of recycled modified plastic, has been proved to be a good material for | Construction of road |
| Which of the following muscular disorders is inherited? | Muscular dystrohy |
| How does steroid hormone influence the cellular activities ? | Binding of DNA and forming a gene-hormone complex |
| Which of the following is responsible for rejection of kidney graft | Cell-mediated immunity |
| Alimentary canal of cockroach | Pharynx, oesophagus, crop, gizzard, ileum,colon and rectum |
| Hormone releasing Intra uterine devices | Progestasert,LNG-20 |
| Difference between spermiognesis and spermiation is | In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from sertoli cells into the cavity of seminiferous tubules |
| Role of the contraception 'SAHELI' | Blocks estrogen receptors in the uterus preventing eggs from getting implanted |
| Hormones secreted by the placenta to maintain pregnancy are | HCG, hPL, progestogens, estrogens |
| Which population interactions is widely used in medical science for the production of antibiotics | Amensalism |
| Valve between right ventrical and pulmonary artery | Semilunar valve |
| Valve between left atrium and left ventrical | Bicuspid valve |
| Which hormones can play a significant role in osteoporosis | Estrogen and parathyroid hormone |
| Which cells indirectly help in erthropoiesis | Parietal cells |
| Ciliates differ from all other protozoans in | Having two types of nuclei |
| What is the role of NAD+ in cellular respiration | It functions as an electron carrier |
| Pollen grains can be stored for several years in liquid nitrogen having a temperature of | -196 degree celcius |
| Two functional group characteristic of sugar are | Carbonyl and hydroxyl |
| In india, the organisation responsible for assesing the safety of introducing genetically modified organisms for public use is | Genetic engineering appraisal committee |
| Lac operon was discovered by | Francois jacob and jacques monod |
| Offsets are produced by | Mitotic divisions |
| Niche is | The functional role played by an organism where it lives |
| Pneumatophores occur in | Halophytes |
| Casparian strips occur in | Endodermis |
| Secondary xylem and phloem in dicot stem are produced by | Vascular cambiam |
| Sweet patato is modified | Adventitious root |
| Which glands are found in submucosa of duodenum | Brunner's gland |
| Trachea get divided into left and right primary bronchi at the level of | 5th thorasic vertebra |
| Blood supply to heart musculature is via | Coronary artery |
| Coronary artery disease, (CAD) often referred to as | Atherosclerosis |
| Carbohydrates which present in the cell membrane take part in | Cell recognition |
| Frame work elements of plant cell | Carbon, Hydrogen and Oxygen |
| Which of following is example of epimer ? | Β – D – glucose and β – D – mannose |
| Choose the incorrect option for given diagram | A - Nucleus,B - Nuclear pore C - RER,D - Ribosome E - SER |
| Chromosomal theory of inheritance was proposed by | Sutton and boveri |
| In recombinant DNA technology antibiotics are used | As selectable markers |
| Match them 1)aquaporin 2)asparagine 3)abscisic acid 4)chitin | 1)polypeptide 2)amide 3)carotenoids 4)polysaccharide |
| Who coined the term kinetin | Skoog and miller |
| Match fruit ripener herbicides bolting agent stress hormone | Ethephon 2,4-D GA3 abscisic acid |
| Spooling is | Collection of isolated DNA |
| The phenomenon of evolution of different secies in a given geographical area starting from a point and spreading to other habitats is called | Adaptive radiation |
| The best example for pleiotropy is | Phenylketoneuria |