* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Genetics Test Review
Vectors in gene therapy wikipedia , lookup
Koinophilia wikipedia , lookup
Biology and consumer behaviour wikipedia , lookup
X-inactivation wikipedia , lookup
Heritability of IQ wikipedia , lookup
Epigenetics of human development wikipedia , lookup
Genome (book) wikipedia , lookup
Biology and sexual orientation wikipedia , lookup
Hybrid (biology) wikipedia , lookup
Population genetics wikipedia , lookup
Genetic drift wikipedia , lookup
Artificial gene synthesis wikipedia , lookup
Genetic engineering wikipedia , lookup
Transgenerational epigenetic inheritance wikipedia , lookup
Nutriepigenomics wikipedia , lookup
Genomic imprinting wikipedia , lookup
Hardy–Weinberg principle wikipedia , lookup
History of genetic engineering wikipedia , lookup
Quantitative trait locus wikipedia , lookup
Designer baby wikipedia , lookup
Microevolution wikipedia , lookup
Genetics Test Review Test Date: Tuesday, January 24, 2017 Matching _B_1. heredity _F_2. traits A. Hidden when the dominant trait is present B. Passing of traits from parent to offspring _D_3. genetics C. Trait always shows up in organism when it is present _E_4. allele D. Study of heredity _C_5. dominant allele E. Different forms of a gene _A_6. recessive allele F. Physical characteristics passed from parents to offspring _H_7. genotype G. Physical description of an organism _G_8. phenotype H. Letter combinations showing the alleles for an organism 9. Fill in the correct term that matches the picture below. Terms: Chromosomes Nucleus Gene xx Nucleus Chromosomes Gene 10. Sexual vs. Asexual Reproduction Sexual or Asexual Sexual or Asexual www.tropical-plants-flowers-and-decor.com www.rpdp.net A Stratodorf is a bird-like animal that has feathers and flies. Stratodorf’s can be many colors varying from pink to green to purple. These creatures require a mate to reproduce. The female lays eggs in a nest and the offspring can be born featuring a variety of colors. Does the Stratodorf reproduce sexually or asexually? Sexual or Asexual 11. Which type of reproduction would be shown by the following picture? ASEXUAL A. How many parents are involved? 1 B. What will the offspring look like compared to the parent? IDENTICAL 12. Which type of reproduction would be shown by the following picture? SEXUAL 2 Similar to the parents, but not identical 13. Which type of reproduction results in greater variety of offspring? Sexual reproduction results in greater variety, because the offspring are a combination of their parents’ genes. 14. What do Inheritance/Punnett squares help us do? They help us find the probability that a certain trait will show up in the offspring of two parent organisms. 15. Complete a Punnett square for the following cross of two pea plants. T = tall t = short Cross a homozygous dominant male with a homozygous recessive female. homo = “same”, so homozygous dominant = TT and homozygous recessive = tt 15, continued T t t Tt T A. What are the possible genotypes? Tt B. What are the possible phenotypes? tall C. What percent of the offspring will be Tt? 100% D. What percent of the offspring will be tall? 100% E. What percent of the offspring will be short? 0% Question 16. The ability to roll your tongue is a dominant trait. Explain why a person who inherits one allele for not being able to roll their tongue could still be able to roll their tongue. Alleles come in pairs. The person’s other allele could be the dominant one for being able to roll their tongue, and the dominant trait always shows up when it is present. 17. What would the genotype be for the person in the above question? R = tongue roller r = non-tongue roller We know one allele is r. The person can roll their tongue, so the other allele has to be R. So the genotype must be Rr. 18. What alleles would a person who cannot roll their tongue have? The only way the recessive trait can show is for the dominant allele to NOT be present. The genotype has to be rr. 19. Spots in dogs S = spots (dominant) SS = spots Ss = spots s = no spots (recessive) ss = no spots 21. Sexual vs. Asexual Reproduction SEXUAL •sperm & egg •zygote •diverse offspring •offspring different from either parent •two parents •mice ASEXUAL •cell dividing •produce offspring •plants •ensures survival •one parent •genetically identical to parent •hydra •identical offspring 22. Why is GREGOR MENDEL considered the “Father of Genetics”? Through his work with pea plants, he discovered dominant and recessive traits and how they are passed from parents to offspring. 23. Explain where genetic material is stored. Inside the cell is the nucleus. The nucleus contains the chromosomes, which are made up of DNA and contain genes. 24. What is an acquired trait? It is a characteristic the individual was not born with but got after birth. scars dyed hair tattoos 25. How are acquired traits different from inherited traits? Acquired traits are not passed on to the offspring of the organism, because they are not in the DNA. 26. Using a pedigree diagram 3 They are carriers of the trait. Yes There are no individuals in Generation 1 that are affected. The trait is recessive and can be hidden by the dominant trait if it’s present. E. Define the term generation. A group of people that make up a single step in the line of descent from an ancestor. 27. Explain why siblings from the same parents don’t always look identical. Each sibling gets a different combination of genes from the parents. 28. gene, chromosome, and nucleus Genes are segments of DNA, which makes up chromosomes, which are in the nucleus of the cell. Hey! I just saw that on another slide! 29. Sex-linked traits Sex-linked traits are carried by one gender. Ex: color-blindness is a trait linked to the female sex chromosome 30. Genetic Material • • • • Gene DNA Chromosomes Inherited traits What other words can YOU think of? That’s IT! STUDY and you’ll do GREAT! We believe in YOU!