10/05/2020 Variation(Senior Class Biology Study by Topics) 0Comments by Gate Academy Please fill in the information below. NAME EMAIL PHONE NUMBER 1. When a woman has a gene for a disorder, but does not show any sign of that disorder, she is called aWeirdoCarrierSex-linked traitHemophiliac2. Sexual reproduction in animals depends on the production of gametes. Choose all the processes below that produce gametes in animals? MitosisMeiosisProtein synthesisFertilization3. Three children of a family have blood groups A, AB and B. What could be the genotypes of their parents? IˆA IˆA and i iIˆA IˆB and i iIˆA i and IˆB iIˆB IˆB and IˆA IˆA4. What is dicot? They have no cotyeladonsThey have one cotyeladonThey usually have two cotyeladonsThey are cool5. Where are chromosomes located inside the cell? The ribosomeThe nuclear membraneThe nucleusThe cell wall6. What are the chances of an offspring being a boy or a girl? 50%75%33%25%7. Genes of a flower colour in Mirabilis jalapa show incomplete dominance. In a cross between red and white flowered plant, all the F, plants are pink flowered. If these plants are self pollinated, the phenotypic ratio in the F 2 generation will be1 : 19 : 3 : 3 : 13 : 11 : 2 : 18. Which of these bases is not found in DNA?AdenineCytosineUracilGuanine9. Evolution can be described as the change of species over time. FalseTrue10. What is Continious variationinherited characteristics caused by mutation or reproductionis acquired characteristics caused by environmental factorsthere are no intermediates, but rather distinctly different groupsthis is when characteristics are spread over a range of values11. A change in the gene's DNA is called a GametesChromosomesHaemoglobinMutation12. Having two of the same genes for a certain trait is called HomozaniousHeterozygousThe sameHomozygous13. Darwin produced the first known theory to explain evolution FalseTrue14. When alleles from each parent both appear in an offspring, it is called CoordinationIncomplete dominanceCodominanceComplete dominance15. IQ tests are said to have "reified" intelligence. This means that IQ tests: Have provided a way of finally understanding the nature of intelligenceReduced a complex idea into a single entity, in this case a numberMade intelligence seem like a real thingAre a real way to measure a person's innate intelligence16. Klinefelter's syndrome has 66 + XXY45 + XY44 + XY44 + XXY17. Which of these animals have an exoskeleton? CatSnakeBeetleJellyfish18. What is genetic variationthere are no intermediates, but rather distinctly different groupsis aquired characteristics caused by environmental factorsthis is when characteristics are spread over a range of valuesinherited characteristics caused by mutation or reproduction19. What is Environmental variationis aquired characteristics caused by environmental factorsthis is when characteristics are spread over a range of valuesinherited characteristics caused by mutation or reproductionthere are no intermediates, but rather distinctly different groups20. Sickle disease is a mutation causing the haemoglobin in the cells to change shape, meaning it will carry less oxygen around the body. The following are problems caused by this disease exceptWeaknessInfection in the lungsTirednessPain(sickle cell crisis)21. FF-striped fur, Ff- solid fur, ff- spotted fur Two larkeys with solid fur mate. Which fur will their offspring most likely have? StripedSpottedSolid22. Sex-linked traits are not passed through the x and y chromosomes. FalseTrue23. The process of removing stamens of a flower during hybridization is called CrossingEmasculationHybridizationSterilization24. A chart that shows the possible gene combinations is called a A pie chartKaryotypeA Punnett SguareA gene symbol25. Lamarck's theory of evolution included the idea that Local catastrophes cause mass extinctions of species.Species are only produced through special creation.There is a natural force in all living things that pushes them toward perfection.Species are fixed and unchanging over time26 out of 25Time is Up!
