plugged it in the Chi Square to support or reject or hypothesis. This lab was of quite simple procedure and did not require many steps. My calculations were my Chi-Square tests‚ which I am posting here under the discussion box. In this lab‚ I counted the kernels in corn based in color and coat texture. In the hybrid crosses the purple and smooth showed up the most (later on we can see these are the dominant alleles when we plug these values in the Chi-Square test table). If we
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| XX | XY | 1:2 1:2 | T | t | T | TT | Tt | t | Tt | tt | 1x1=1 2X2=4 1:4= 25% 5. a. Yes‚ there is a 50% chance that the young woman will develop FFI disease. B. | f | f | F | Ff | Ff | f | ff | ff | This Punnett square shows that there is a 50% chance that the young woman will have the dominant allele and become affected by FFI and a 50% chance that the young woman will be homozygous recessive and be unaffected by FFI. 6. a. b. The egg that has non-disjunction
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Honors Biology – Genetics Mixed Review Worksheet For each of the following: o Identify the genotypes of the parents o Complete a Punnett Square o Give the genotypic AND phenotypic results of the cross (percentage OR ratio) 1. In fruit flies‚ long wings are dominant to short wings. Complete a cross between a short winged male and a heterozygous female. 2. In certain flowers‚ blue and yellow flowers are incompletely dominant to each other. Show the cross
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with a hybrid one out of four of the pea plants were short. Mendel was very confused‚ and kept breeding. After a while‚ Mendel finally discovered how to tell how many plants were going to be tall and short. He figured this out using the punnett square. The punnett square is a little chart that shows which trait your "creation" is going to get. It is a rough estimate‚ but it is better that nothing. Sadly‚ Gregor Mendel’s work was not discovered in his lifetime. Then‚ scientists in the 1900’s proved
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Drosophila melanogaster is a fruit fly‚ about 3mm in length‚ and it is the insect that flies around spoiled fruit. A model organism has these traits: short life cycles and rapid development‚ small average size‚ big population‚ and fast reproduction (NCBI). Drosophila melanogaster meet all of the criteria for being a model organism. Also‚ fruit flies were used because they are very easy to handle and they require minimal resources to survive‚ as opposed to other organisms that might need more food
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pollinate is that fast plants do not self-pollinate‚ so bee sticks are used to successfully reproduce. Over the next week we had to pollinate the flowers two more times so the flowers could achieve maximum fertilization. In the following week we had to complete the pollination and pinch off any unopened flower buds. Then from weeks 5-7 we monitored the seed formation. And on week 7 we took the fast plants off their watering system and let them dry for five days. Then in week 8 we collected our F2 seeds
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since‚ they have been used for genetic experiments (Ashburner). There is a huge advantage to using fruit flies instead of another organism. Fruit flies have simple food requirements‚ they occupy little space (they are contained in vials)‚ they complete their life in about 8-14 days (depending on the temperature)‚ they produce many offspring‚ and they can be “put to sleep” to examine them (Life). Although there are many factors that determine the life span of the fruit flies‚ the biggest one is
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How would you label the 4 columns and the 4 rows on a dihybrid Punnett square when a female cat with the genotype RrDd is crossed with a male cat with the genotype RrDD? (R=curly tail‚ r=straight tail‚ D=long whiskers‚ d=short whiskers). 19. Explain why individuals look different than what their genes predetermine them
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NO.102/1 Marker Code Student Personal Identification Number (SPIN) South Pacific Form Seven Certificate BIOLOGY 2009 QUESTION and ANSWER BOOKLET Write your Student Personal Identification Number (SPIN) on the top right hand corner of this page and on the fold-out flap on the last page. Answer ALL QUESTIONS. Write your answers in the appropriate spaces provided in this booklet. If you need more space for answers‚ ask the Supervisor for extra paper. Write your SPIN on all extra sheets used and
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of genetics. -Cystic fibrosis is inherited as a recessive trait. Each child of 2 carriers has a ¼ chance of inheriting 2 recessive alleles. A person with 2copies of this allele has cystic fibrosis. 2. What would a Punnett square that shows how the son in generation IV (marked with an A) inherited cystic fibrosis look like? | |A |a | |A |AA |Aa | |a |Aa |aa |
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