10/05/2020Variation(Senior Class Biology Study by Topics) 0Comments by Gate Academy Please fill in the information below. NAME EMAIL PHONE NUMBER 1. Evolution can be described as the change of species over time. False True2. Normal fruit flies have brownish-yellow bodies, and this body color is dominant. A mutation in the gene for body color can produce flies with an ebony body color. A homozygous normal fruit fly (e+ e+) is crossed with a homozygous ebony fruit fly (ee). What is the predicted outcome of this genetic cross? All offspring will have brownish-yellow bodies. Of the offspring, 75% will have ebony bodies, and 25% will have brownish-yellow bodies. All offspring will have ebony bodies Of the offspring, 75% will have brownish-yellow bodies, and 25% will have ebony bodies.3. There is no similarities between human DNA and DNA other of mammals such as chimpanzees False True4. Which of the following is associated with Y chromosome? Colour blindness Haemophilia Night blindness Hypertrichosis of ears5. Klinefelter's syndrome has 44 + XY 45 + XY 44 + XXY 66 + XXY6. All human BODY CELLS contain this many chromosomes 46 23 8 457. Which of the following processes allows for cells to divide to produce new cells that contain all of the necessary information to survive? DNA transcription Cellular Reproduction DNA Replication MRNA translation8. Find the correct meanings of the definition; species animalia, plantae, fungi, protoctista and prokaryatae groups of organisms that have many features in common compromising of several classes compromising of several genera9. What is Environmental variation inherited characteristics caused by mutation or reproduction there are no intermediates, but rather distinctly different groups this is when characteristics are spread over a range of values is aquired characteristics caused by environmental factors10. What is genetic variation this is when characteristics are spread over a range of values there are no intermediates, but rather distinctly different groups is aquired characteristics caused by environmental factors inherited characteristics caused by mutation or reproduction11. Chromosomes are found in the ................ of each cell red blood cell plasma white blood cell nuclues12. In cocker spaniels the allele for a black coat color (B) is dominant over the allele for a brown coat color (b). If a brown cocker spaniel is crossed with a heterozygous black cocker spaniel, which of the following genotypic ratios can be expected? 1 BB: 2 Bb: 1 bb 2 BB: 1 Bb: 0 bb 2 BB: 0 Bb: 2 bb 0 BB: 2 Bb: 2 bb13. Cystic fibrosis and sickle cell disease are examples of Monohybrids Pedigree analysis Inherited recessive genetic disorders Osmoregulation14. Some adaptations are highly specialized True False15. Having two of the same genes for a certain trait is called Homozygous Homozanious The same Heterozygous16. What is Discontinious variation inherited characteristics caused by mutation or reproduction is aquired characteristics caused by environmental factors this is when characteristics are spread over a range of values there are no intermediates, but rather distinctly different groups17. Find the correct meanings of the definition; class compromising of several classes groups of organisms that have many features in common animalia, plantae, fungi, protoctista and prokaryatae compromising of several orders18. Darwin's observation that there were Patagonian hares but no rabbits in South America was most closely related to his consideration of The fossil record. . Biogeography. Comparative embryology Comparative anatomy.19. Most of Darwin's observations about changes in species over time and in different environments took place in and near North America. Asia Africa. South America.20. Which of these bases is not found in DNA? Guanine Uracil Adenine Cytosine21. Find the correct meanings of the definition; genus animalia, plantae, fungi, protoctista and prokaryatae compromising of several classes contains several species with similar characteristics compromising of several genera22. Which of these animals have an exoskeleton? Snake Jellyfish Cat Beetle23. Genes for a trait that are hidden when the dominant gene is present are called Recessive gene A wimpy gene Heterozygous Recessitative jeans24. Which of the following cross gives a typical dihybrid test cross ratio? YyRr x yyrr YyRr x YyRr Yyrr x Yyrr Yyrr x yyRr25. How many pairs of chromosomes are in a human body cell? 12 46 23 826 out of 25Time is Up!