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. What is Discontinious variationthis is when characteristics are spread over a range of valuesthere are no intermediates, but rather distinctly different groupsis aquired characteristics caused by environmental factorsinherited characteristics caused by mutation or reproduction2. The difference between a monohybrid cross and a dihybrid cross is that Monohybrid crosses involve traits for which only one allele exists, while dihybrid traits involve two alleles.Monohybrid crosses involve one trait; dihybrid crosses involve two traits.Monohybrid crosses involve self-pollination, while dihybrid crosses involve cross-pollination.Dihybrid crosses require two Punnett squares; monohybrid crosses need only one.3. Genetics is the branch of biology that involves the study of how different traits are transmitted from one generation to the next. FalseTrue4. ABO - blood group in man is under the control of Multiple allelesMultiple cellsSex-linked genesY-linked genes5. How many pairs of chromosomes are in a human body cell? 12823466. Where are chromosomes located inside the cell? The ribosomeThe cell wallThe nuclear membraneThe nucleus7. Darwin's observation that there were Patagonian hares but no rabbits in South America was most closely related to his consideration of Comparative embryologyComparative anatomy.The fossil record. .Biogeography.8. A change in the gene's DNA is called a ChromosomesHaemoglobinGametesMutation9. Find the correct meanings of the definition; genuscompromising of several classescompromising of several generaanimalia, plantae, fungi, protoctista and prokaryataecontains several species with similar characteristics10. Which of these animals have an exoskeleton? SnakeCatBeetleJellyfish11. Cystic fibrosis and sickle cell disease are examples of Pedigree analysisOsmoregulationInherited recessive genetic disordersMonohybrids12. A woman that is a carrier of colorblindness mates with a man that is colorblind. What percent chance will their offspring actually be colorblind?None of the above75%50%25%13. Sperm cells and egg cells are examples of MeiosisBody cellsGametesDNA14. The process of removing stamens of a flower during hybridization is called SterilizationHybridizationCrossingEmasculation15. Father's blood group is A and mother's blood group is O. What will be the not possible blood groups for child O,BAB, ABAB, O16. Find the correct meanings of the definition; kingdom groups of organisms that have many features in commonanimalia, plantae, fungi, protoctista and prokaryataecompromising of several classescompromising of several orders17. The type of gene that always shows itself is called a Recessive geneHomozygous geneDominant genePowerful gene18. A larkey that is homozygous for red eyes(EE) mates with a larkey that is homozygous for gray eyes(ee). What percent chance will their offspring have gray eyes? 25%None of the above50%75%19. What is genetic variationis aquired characteristics caused by environmental factorsthis is when characteristics are spread over a range of valuesthere are no intermediates, but rather distinctly different groupsinherited characteristics caused by mutation or reproduction20. Trisomy has chromosome complement of 2n – 12n + 12n – 1 – 12n + 1 + 121. Find the correct meanings of the definition; familyanimalia, plantae, fungi, protoctista and prokaryataegroups of organisms that have many features in commoncompromising of several classescompromising of several genera22. Natural selection was independently proposed as a means of evolution by Darwin andLeClerc.Lamarck.Lyell.Wallace.23. Different versions of genes are called:NucleiChromosomesAllelesGametes24. What does homozygous meanhaving two identical alleles of the same genean allele that is only expressed if there is no dominant allele presentan allele that is only expressed if there is no dominant allele presentone out of the two or more versions of a gene25. Sex-linked traits are not passed through the x and y chromosomes. TrueFalse26 out of 25Time is Up!