GENETICS TEST REVIEW I. Meiosis 1. Contrast Mitosis and Meiosis in the following table: Mitosis Meiosis Function: How many daughter cells are produced: Are daughter cells haploid or diploid? Genetic makeup of daughter cells: 2. If the eye cell of a fly has 8 chromosomes, what is the diploid number of chromosomes for this fly? What is the haploid number of chromosomes for this fly? How many chromosomes will it have in its gametes? 3. What is the diploid number of chromosomes for humans? What is the haploid number of chromosomes for humans? 4. What are gametes? 5. What is fertilization? What is the difference between internal and external fertilization? 6. What is the process shown below that occurs during Prophase I?
7. If all cells in your body has the same copy of DNA, why do cells look and function differently?
8. Name 2 ways that eukaryotic genes are regulated.
II. Genetics Problems 1. What does the law of segregation state? 2. What does the law of independent assortment state? 3. Give an example of a cross resulting in incomplete dominance. 4. What is genetic polymorphism? Why is genetic polymorphism a biological advantage? 5. What does sex-linked mean? What is a good example? 6. Do a cross between a vampire and a heterozygous mortal. The allele for vampirism is recessive.
What is the phenotypic ratio of the above cross? What is the genotypic ratio of the above cross? 7. Do a cross between 2 heterozygous mortals (the vampire allele is recessive).
8. Werewolfism is a sex-linked recessive trait carried on the X chromosome. Do a cross between a female carrier for this trait and a normal male.
What is the phenotypic ratio of daughters? What is the genotypic ratio of daughters? What is the phenotypic ratio of sons? What is the genotypic ratio of sons? 9. Explain the difference between codominance and incomplete dominance. What would the offspring of each kind of cross look like?
10. You crossed 2 purple tribbles and, surprisingly, some of the offspring were red, some were purple and some were blue. What kind of dominance is this? Complete a Punnett Square showing this cross.
What is the phenotypic ratio of the offspring? What is the genotypic ratio of the offspring?
11. You cross 2 individuals that are heterozygous for both vampirism and shimmering skin. Alleles for vampirism and shimmering skin are both recessive. Show the genotypes of the parents: ___________ X __________ Show the cross:
What is the phenotypic ratio of the offspring?
What is the genotypic ratio of the offspring? 12. Three babies were mixed up at the hospital and your help is needed to get them back to their correct parents. Do Punnett squares to figure out which baby matches which couple. Match the following offspring to the correct parents: baby 1: type O blood baby 2: type AB blood baby 3: type B blood
Couple A : mother has type O blood, father has type AB blood ________ Couple B:
mother has type O blood , father unknown
________
Couple C: mother has type A blood, father unknown
________
13. Why can you not give Type B blood to someone with Type A blood during a transfusion? 14. Why do some heart transplant recipients reject their new hearts? 15. What abnormality syndrome (trisomy 21)? 16.
in
cell
division
leads
to
Down’s
What mutations are represented below:
A: B: C: D: 17.What is cloning? How does it work?
18.What is the name of each phase of the cell cycle below and what is occuring during each phase:
A: B: C: D: 19.What is the role of the G1, S and G2 in regulating the cell cycle?
20. Can all mutations be passed on to your offspring? Why or why not?
21.What are the 4 main stages of the cell cycle?
22.If sandy colored lizards and black colored lizards are put on to two isolated islands. Both islands are mainly covered in desert sands. What happens to each population of lizards? Explain.
23. Organism A: FTGHYLJIKQW Organism B: FTOPGHYLKIJ Organism C: FTOPGHYLKZXC Each of the organisms listed above have an amino acid chain represented by different letters. Example: F=leucine, etc. Which organisms are more related? 24. How does an egg cell in a female differentiate? Think about how one cell turns into a bunch of different cells with different shapes and functions.
GENETICS TEST REVIEW I. Meiosis 1. Contrast Mitosis and Meiosis ...
like? 10. You crossed 2 purple tribbles and, surprisingly, some of the offspring were red, some were purple and some were blue. What kind of dominance is this?
http://www.pbs.org/wgbh/nova/baby/ --> Click "How Cells Divide" -->"Mitosis vs. Meiosis". 29. After viewing the animation, fill out the chart below, by placing a ...
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Chromosomes line up along equator, not in homologous pairs. 5. Crossing-over occurs. 6. Chromatids separate. 7. Homologs line up alone equator. 8. Cytoplasm divides, 2 daughter cells are formed. Page 1 of 1. Meiosis - Name the Phases.pdf. Meiosis - N
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Using textbook, class, and internet resources, you are to assemble a model of a eukaryotic cell going through the cell cycle. In particular, you must show the detail of the chromosomes ... on a poster, but a manipulation of chromosomes and should be
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The nuclear membrane breaks apart and the chromatin. condenses into chromosomes. The centrioles form a star shaped structure called the aster and a spindle.
Write true or false : 5x1=5. (a) The study of how to best implement and integrate cryptography in software applications is itself a distinct field. (b) Authentication is the process of verifying the identity of a person. MSEI-022. 1. P.T.O.. Page 2.
Digital Image Processing (DIP) involves the modification of digital data for improving the image qualities with the aid of computer. The processing helps in maximizing clarity, sharpness and details of features of interest towards information extract
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Remember â Pro = NO nucleus; EU = TRUE nucleus. Prokaryotic Cell Eukaryotic ..... Humans have 46 chromosomes, so more than º. 8 million combinations are ...
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